Correct option is D
The correct substitution of the highlighted words is
(d) Many a time.
Explanation: “Much times” is incorrect because “much” is used with uncountable nouns, while “times” is a countable noun. The correct idiomatic phrase is
“many a time”, which means “very often” or “on many occasions.”
Grammatical rule used:
· “Many a + singular noun” is a formal and poetic structure used to express frequency or emphasize a large number.
·
Example: Many a time, I’ve warned him about his behavior.
Information Booster:
“Many a time” takes a
singular verb though it refers to multiple times.