Select the alternative that will improve the highlighted part of the sentence. In case there is no improvement select “No improvement”.
Ravi tried to explained him the problem but he refused to listen.

Correct option is B

The correct substitution of the highlighted words is (b) explain the problem to him.
Explanation:
· After the verb “explain”, the correct structure is: explain + object + to + person.
· "Explain him the problem" is grammatically incorrect.
Grammatical rule used:
“Explain” is a transitive verb that doesn’t take a direct object as a person.
Correct structure: Explain the matter to someone
Example:
· He explained the rules to me.