Select the appropriate option that can substitute the highlighted word in the following sentence to make it grammatically correct.
This novel is more interesting of all in the library.

Correct option is A

The correct substitution of the highlighted segment is "the most interesting."
Explanation:
· The phrase "of all" indicates a comparison among many, which requires a superlative form.
· The correct superlative form of "interesting" is "the most interesting."
Grammatical Rule Used:
· Comparative degree: Used for two things (e.g., "This novel is more interesting than that one.")
· Superlative degree: Used for more than two things (e.g., "This novel is the most interesting of all.")
Examples:
· ✅ Correct: "This is the most interesting book in the library."
· ❌ Incorrect: "This is more interesting of all in the library."
Meanings of the other options and why they are incorrect:
· Most interesting – Incorrect because "the" is required before superlatives.
· The more interesting – Incorrect because comparative degree is not needed here.
· Interesting – Incorrect because a degree of comparison is necessary.