Select the most appropriate option to substitute the bracketed segment in the given sentence. If there is no need to substitute it, select ‘no substitution required’.
No, they are normal people, (although they perceive the world different).

Correct option is B

The correct substitution of the highlighted words is (b) but they perceive the world differently.
Explanation: “Different” is an adjective, but we need an adverb here because it modifies the verb “perceive”. Hence, “differently” is correct.
Grammatical rule used:
Adverbs modify verbs, adjectives, or other adverbs. In this sentence, “perceive” is the verb, and thus it needs an adverb modifier.
Example: She behaves differently when she's nervous.
Information Booster:
Common adjective/adverb confusion occurs with words like “quick” (adj) vs. “quickly” (adv), “different” vs. “differently”.