The following question, consist of two words each that have a certain relationship to each other, followed by four lettered pairs of words. Select the lettered pair that has the same relationship as the original pair of words:
Yolk : Egg

A. Duck : Fowl

B. Stalk : Corn

C. Rind : Melon

D. Nucleus : Cell

Answer: Option D

Solution(By Examveda Team)

First forms the central portion of the second.