Question
Language Comprehension Question on Sentence Correction
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
of relevant factors is used to manipulate reality in human action
Explanation
Solution
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