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:
Shoe : Leather

A. Medicine : Doctor

B. Highway : Asphalt

C. Train : Wagon

D. Bus : Conductor

Answer: Option B

Solution(By Examveda Team)

Second is the material used to make the first.