WAEC Further Mathematics 2021 Question 15

Given that P = {x: 0 ≤ x ≤ 36, x is a factor of 36 divisible by 3}, and Q = {x: 0 ≤ x ≤ 36, x is an even number and a perfect square}, find P ∩ Q.

1. A.{1, 4, 9, 36}
2. B.{3, 9, 36}
3. C.{9, 36}
4. D.{36}