Essential Part - Verbal and Reasoning

Directions to SolveFind the word that names a necessary part of the underlined word.
Q1:

knowledge

A school

B teacher

C textbook

D learning

ANS:D - learning

Explanation: Knowledge is understanding gained through experience or study, so learning is the essential element. A school (choice a) is not necessary for learning or knowledge to take place, nor is a teacher or a textbook (choices b and c).