Correct option is A
Given: 'Furniture' in the same way as 'Building'.
'Building' is related to 'Mason' because a mason constructs a building.
Now, we check each options.
Option (a): Carpenter → A carpenter makes furniture.
Option (b): Wood → Wood is a material used to make furniture, but it doesn't make furniture by itself.
Option (c): Designer → A designer creates plans for furniture, but does not necessarily build it.
Option (d): Contractor → A contractor manages construction work, not directly related to making furniture.
So, Carpenter (because a carpenter makes furniture, just as a mason builds a building)
Thus, correct option is (a).