6^2 is multiplied to which positive to give a complete square?

by

A. 4 
B. 7
C. 6
D. 5

🧠 Explanation (Math):

Given: 6² multiplied by which positive gives a perfect square?
Step 1: 6² = 36 already a perfect square
Step 2: Multiplying by 4 gives 36×4 = 144 = 12²
Final Answer: 4