Select the most appropriate word to fill in the blank. Out of all, this is the _____________ school in the city.

Correct option is D

The correct option to fill in the blank is (d) most famous. Explanation of correct answer: “Most famous” is the superlative form, suitable for expressing the highest degree of fame among all schools. Meanings of other options:
· more famous: comparative form, used for comparison between two items.
· famousest: incorrect and non-standard form.
· famous: positive form, not conveying superlative degree.