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:
Factory : Siren

A. Library : Book

B. House : Room

C. Motor car : Engine

D. Clock : Alarm

Answer: Option D

Solution(By Examveda Team)

A factory has a siren to sound in times of emergency or at break time. Likewise, a clock has an alarm to wake people up.