Choose the best option to complete the sentence:
Mohan has a friend _______ brother is a doctor.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → whose
Complete sentence: Mohan has a friend whose brother is a doctor. The brother belongs to the friend (the friend's brother), so the clause needs the possessive.
| Option | Form and use | Example |
|---|---|---|
| (1) which | which — for things and animals. "Which" is used for things, not for a friend, and it does not show possession. | – |
| (2) who | who — for people, as subject or object of the clause. "Who" refers to the friend as a doer ("a friend who is a doctor"). It cannot be followed by "brother" to show whose brother. | – |
| (3) that | that — for people or things in defining clauses. "That" does not show possession. "A friend that brother is a doctor" makes no sense. | – |
| (4) whose (answer) | whose — shows possession. It is followed by a noun: the man whose car ... | I met a girl whose father is a pilot. |
Contrast: a friend who is a doctor (the friend is the doctor). A friend whose brother is a doctor (the brother is the doctor).