M, N, O, P, Y and Z live on six different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, number 2 and so on till the topmost floor is numbered 6. Only two people live between N and P. Only two people live between Z and O. No one lives above Z. P lives below O but above Y. How many people lives below M?

Correct option is A

Given- M, N, O, P, Y and Z live on six different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, number 2 and so on till the topmost floor is numbered 6.
Only two people live between N and P.
Only two people live between Z and O.
No one lives above Z.
P lives below O but above Y.

Floor 6 → Z
Floor 5 → N
Floor 4 → M
Floor 3 → O
Floor 2 → P
Floor 1 → Y

3 people lives below M