Fill in the blank with the suitable preposition:
_______ all the children in the class, I find Sushma to be the most attentive.

Correct option is A

The correct preposition to fill in the blank is (a) Among.

• The preposition"among"is used to refer to something being part of or surrounded by a group. In this context, it indicates that Sushma is being compared to all the children in the class (a group).

Correct sentence:Among all the children in the class, I find Sushma to be the most attentive.

Grammatical Rule Used: Use "among" when referring to more than two individuals or things in a group.
Rule in Hindi: जब एक समूह या तीन से अधिक व्यक्तियों के बीच तुलना की जाए, तो "among" का उपयोग किया जाता है।

Meanings of the other options: