WAEC Further Mathematics 2022 Question 15

Given that P = {x : x is a multiple of 5}, Q = {x : x is a multiple of 3} and R = {x : x is an odd number} are subsets of μ = {x : 20 ≤ x ≤ 35}, find (P ∪ Q) ∩ R.

1. A.{20, 21, 25, 30, 33}
2. B.{21, 25, 27, 33, 35}
3. C.{20, 21, 25, 27, 33, 35}
4. D.{21, 25, 27, 30, 33, 35}