Answer:
Option (4)
Explanation:
D = x is a whole number
D = {1, 2, 3, 4..........}
E = x is a perfect square between 1 and 9
E = {4}
F = x is an even number greater than 2 and less than 9
F = {2, 4, 6, 8}
(E ∩ F) = Set of common numbers of E and F
= {4}
D ∩ (E ∩ F} = Set of common numbers in the sets of D and (E ∩ F)
= {4}
Therefore, Option (4) will be the answer.