Which missing code will give “Cellar Door” a shadow?

<style>
#cellar-door {
box-shadow: 3px 5px 10px #000;
}
.text-shadow {
text-shadow: 3px 5px 10px #000;
}
</style>

<h1 _____> Cellar Door</h1>

• class=”text-shadow”
• id=”cellar-door”
• id=”text-shadow”
• class=”cellar-door”