Question

A sentence has been divided into four parts. Choose the part that has an error.

• A. Science really begins when general principles
• B. have to be put to the test of fact
• C. and when practical problems and theoretical relations
• D. of relevant factors is used to manipulate reality in human action

Answer 1

The Correct Option is D

The error is in the subject-verb agreement. The phrase "practical problems and theoretical relations" is plural, so the verb "is" should be replaced with the plural form "are" to maintain correct subject-verb agreement.The correct option is (D): of relevant factors is used to manipulate reality in human action