Bootstrap 4 collapse accordion

<!DOCTYPE html>
<title>My Example</title>

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<div class="card">
<div class="card-header" role="tab" id="questionOne">
<h5 class="card-title">
<a data-toggle="collapse" data-parent="#faq" href="#answerOne" aria-expanded="true" aria-controls="answerOne">
What if my boots are too big for my feet?
</a>
</h5>
</div>
<div id="answerOne" class="collapse show" role="tabcard" aria-labelledby="questionOne">
<div class="card-body">
Stuff your boots with newspaper or tissue.
</div>
</div>
</div>

<div class="card">
<div class="card-header" role="tab" id="questionTwo">
<h5 class="card-title">
<a class="collapsed" data-toggle="collapse" data-parent="#faq" href="#answerTwo" aria-expanded="false" aria-controls="answerTwo">
Can I wear my boots inside?
</a>
</h5>
</div>
<div id="answerTwo" class="collapse" role="tabcard" aria-labelledby="questionTwo">
<div class="card-body">
No. Your mama should've told you about this.
</div>
</div>
</div>

<div class="card">
<div class="card-header" role="tab" id="questionThree">
<h5 class="card-title">
<a class="collapsed" data-toggle="collapse" data-parent="#faq" href="#answerThree" aria-expanded="true" aria-controls="answerThree">
What if my boots get slippery when wet?
</a>
</h5>
</div>
<div id="answerThree" class="collapse in" role="tabcard" aria-labelledby="questionThree">
<div class="card-body">
Keep your boots dry.
</div>
</div>
</div>

</div>

</div>
		

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<script>
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$(function () {
  $('[data-toggle="tooltip"]').tooltip()
})

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$(function () {
  $('[data-toggle="popover"]').popover()
})
</script>