Choose the grammatically correct sentence:

The correct answer is Option (3) → Each of the boys in the cricket team has to carry his own kit bag to the ground.

“Each of” takes a singular pronoun:

“Each” takes one person at a time, so it is singular. The pronoun that stands for it must be singular too. The team here is all boys, so “his” is right. The sentence has no other error.

Why the Other Options are Incorrect?

Option 1: The parcel who came for you this morning is on the dining table. — Incorrect. The given sentence says “the parcel who”. This is wrong: “who” is used only for people. For a thing, use “that” or “which”.
Corrected: The parcel that came for you this morning is on the dining table.

Option 2: Our new principal she wants every class to plant ten saplings. — Incorrect. The given sentence says “Our new principal she wants”. This is wrong: “our new principal” is already the subject. Adding “she” gives the verb a second subject.
Corrected: Our new principal wants every class to plant ten saplings.

Option 4: After the long rally, the two badminton players hugged themselves at the net. — Incorrect. The given sentence says the players “hugged themselves”. This is wrong: each player hugged the other. For an action between two people, use “each other”.
Corrected: After the long rally, the two badminton players hugged each other at the net.