The underlined part of the sentence may require correction. Choose the most appropriate replacement. If it is already correct, select “No improvement required.”

After several practice sessions, Riya became more better at identifying mistakes in reports.

The correct answer is much better.

Step-by-Step Explanation:

1. Identify the error in the original sentence:
The sentence uses the underlined phrase "more better".
In English grammar, "better" is already the comparative form of the adjective "good" (good → better → best). Adding the word "more" before an existing comparative adjective creates a double comparative, which is grammatically redundant and incorrect.

2. Understand how to intensify comparative adjectives:
To emphasize or intensify a comparative adjective, we use adverbial modifiers such as "much," "far," or "a lot" before the comparative word.
• Incorrect: more better
• Correct: much better

3. Evaluate the given options:
• No improvement required: Incorrect because "more better" contains a grammatical error.
• better: While grammatically acceptable on its own, it lacks the emphasis intended in the context of practice leading to significant progress.
• best: Incorrect because "best" is the superlative form, used when comparing three or more things or asserting the highest possible degree, which does not fit this comparative sentence structure.
• much better: Correct because it eliminates the double comparative while correctly intensifying the improvement Riya made over time.

Correct Sentence:
"After several practice sessions, Riya became much better at identifying mistakes in reports."