Help Plz!!


Which sentence does not describe a structural adaptation?


A.

An elephant has a long trunk that it uses to reach leaves high in a tree.


B.

A dog walks to a stream and drinks when it gets thirsty.


C.

A hummingbird has a long, thin beak to sip nectar from flowers.


D.

A rosebush has thorns to protect it from animals that might eat it.