Is 144 a perfect square? A. The whole number 144 is a perfect square because the square root of 144 is a whole number.

B. The whole number 144 is not a perfect square because the square root of 144 is not an irrational number.

C. The whole number 144 is a perfect square because 144 is divisible by 2.

D. The whole number 144 is a perfect square because 144 is divisible by 4.