Answer:
A. 144
D. √9 * √16.
Explanation:
The product property of square roots states that for any two numbers (a and b), where both are greater than or equal to 0, the square root of a product is equal to the product of the square root:

Thus, √(9 * 16) is equivalent to √9 * √16.
We can see this mathematically if we evaluate the expressions:

Thus, the answers are A and D.
If you can only choose one answer, choose D because the question didn't explicitly ask us to evaluate √(9 * 16).
If you can choose multiple answers, choose A and D.