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 <p>R will construct column headers from values in your first row of
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 <ol style="list-style-type: decimal"><li><p><code>animal[4:1]</code></p></li>
 <li><p><code>"o" "n" "k" "e" "y"</code> and
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 </button>
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 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><p><code>animal[4:1]</code></p></li>
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 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
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 <div class="accordion-body">
 <p>Answer: 3</p>
 <p>Explanation: You want to extract the part of the dataframe
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   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
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 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
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 <ol style="list-style-type: decimal">
 <li><p>The solution is <code>a.</code>.</p></li>
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 </button>
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 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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 <p>R will construct column headers from values in your first row of
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 </button>
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 <ol style="list-style-type: decimal"><li><p><code>animal[4:1]</code></p></li>
 <li><p><code>"o" "n" "k" "e" "y"</code> and
@@ -1393,7 +1393,7 @@ <h4 class="accordion-header" id="headingSolution5">
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-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
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 <div class="accordion-body">
 <p>Answer: 3</p>
 <p>Explanation: You want to extract the part of the dataframe
@@ -1436,7 +1436,7 @@ <h4 class="accordion-header" id="headingSolution6">
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 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
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 </button>
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-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
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 </button>
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 <div class="accordion-body">
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