The following sentence has been split into four segments. Identify the segment that contains an error.
That question is / much difficult / but this one is / very easy.

Correct option is C

Option (c) much difficult contains an error.
Explanation:
· The word "difficult" is a qualitative adjective and should be modified by "very" instead of "much."
· "Much" is used with uncountable nouns, whereas "very" is used with adjectives to indicate a high degree.
Grammatical rule used:
· Use "very" before adjectives in positive degree (Very + Adjective).
· Use "much" with comparatives and uncountable nouns (Much + Comparative Adjective).
Correct sentence:
· That question is very difficult, but this one is very easy.
Example:
· Incorrect: This test is much difficult.
· Correct: This test is very difficult.