Select the most appropriate option to substitute the highlighted segment in the given sentence.
We have finished our work for the day, so let we go home early today.

Correct option is B

The correct substitution of the highlighted words is (b) let us go.
Explanation: The verb “let” must be followed by an object pronoun like “us,” not a subject pronoun like “we.”
“Let we go” is grammatically incorrect.
Grammatical rule used:
“Let” + object pronoun (me, us, him, them, etc.) + base verb
Example: Let him speak. (Not “Let he speak” )
Information Booster: “Let’s” is a contraction of “let us” and used informally. In formal writing or speech, use “let us.”