Correct option is D
The correct substitution of the highlighted segment is (d) "to."
Explanation: The verb "prefers" is conventionally followed by "to" when used to compare two different choices or preferences, as it establishes a preference of one thing over another.
The correct sentence should read, "Shreya prefers ice-cream to chocolates."
This usage correctly conveys that out of the two options, ice-cream is favored.
Grammatical rule used: When expressing a preference between two nouns, "prefer" should be followed by "to" rather than "than," which is often mistakenly used. The correct prepositional usage ensures the sentence adheres to standard English grammar.
Example: Many people prefer coffee to tea in the morning, as it gives them a quicker caffeine boost.
This structure aligns with the formal rules of English grammar for expressing preferences, making "to" the most appropriate choice for the sentence.