Riddle

It can be done to buttons and shopping carts. What is it?

Choose an answer

A.A pull
B.A roll
C.A press
D.A push
Hint: It's a 2-word phrase with 5 letters, starting with "A".

Answer

A push

Why this is the answer

You push a button to activate it and push a shopping cart to move it along.

This riddle is filed under "What Am I?" Riddles and rated Easy.