Select the most appropriate option to substitute the highlighted segment in the given sentence.
A computer can’t function without it’s mother board.

Correct option is A

The correct substitution of the highlighted segment is (a) its.
Explanation:
· The word its is a possessive pronoun used to indicate ownership, meaning belonging to it.
· It’s (with an apostrophe) is a contraction of it is or it has. In this context, the sentence is referring to the motherboard that belongs to the computer, so the possessive pronoun its is the correct choice.
Grammatical rule used:
· Possessive pronouns (e.g., his, her, its) do not use apostrophes.
· Apostrophes are used in contractions, not for possession in pronouns.
Example: Correct: The cat chased its tail. Incorrect: The cat chased it’s tail.
Why other options are incorrect:
· (b) his: Incorrect because his refers to a male person, not applicable to an object like a computer.
· (c) their: Incorrect because their refers to plural subjects, while computer is singular.
· (d) it is: Incorrect because it is does not indicate possession and changes the meaning of the sentence.
The correct sentence is: A computer can’t function without its motherboard.