Volcanic vents are places where magma can erupt onto earth's surface. which volcanic feature forms a relatively small depression around a volcano's vent?

crater

fissure

caldera

lava plateau

The answer is d. when it begins to fall back to the child's hand

Iam not sure but to me it with be a or dsorry if i was late! hope this ! : )if you really want me to find out the answer that is correct tell me and i will do more research but the a or d makes sense to me.