Riddle

This is a shape and a symbol that we literally cannot live without. What is it?

Choose an answer

A.A brain
B.A lung
C.A star symbol
D.A heart
Hint: It's a 2-word phrase with 6 letters, starting with "A".

Answer

A heart

Why this is the answer

The heart shape symbolizes love, but it's also the literal organ that pumps blood, without which no one can survive.

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