Fill in the blank with the most appropriate word.
The mid-day meal ensures ______ each child studying in a government school has at least one nutritious meal a day.

Correct option is C

The correct option to fill in the blank is (c) that.
Explanation: "Ensures that" is a standard phrase used to indicate a guaranteed outcome or condition. (यह सुनिश्चित करता है कि...)
Grammatical rule used:
"Ensure" is a verb that is followed by the conjunction "that" to introduce a clause.
Example: She ensured that the documents were submitted on time.
Incorrect options:
· (a) those: Demonstrative pronoun, does not connect a clause. (वे)
· (b) this: Refers to a specific thing close in distance or time. (यह)
· (d) these: Plural demonstrative (ये), incorrect in this context.