Riddle

I am covered with three layers, two of them can be very sensitive, my layers can cover me in a heartbeat or a long time. What am I?

Choose an answer

A.A cat's paw
B.A cat's ear
C.A cat's whisker
D.A cat's eye.
Hint: It's a 3-word phrase with 8 letters, starting with "A".

Answer

A cat's eye.

Why this is the answer

The eye has multiple sensitive layers and can close instantly in a blink or stay shut through a long nap.

This riddle is filed under Pet, Cat & Dog Riddles and rated Hard.