Question

Use the correct possessive form of the underlined nouns in a sentence:
The interests of the teacher and his student are different.

• A. The teacher's and his student interests are different.
• B. The teacher and his student's interests are different.
• C. The teacher's and his student's interests are different.
• D. None of the above is correct.

Answer 1

Answer: (C)

The teacher's and his student's interests are different.

When two nouns indicate ownership, but the ownership is separate, each noun in possessive case is suffixed by an apostrophe followed by the letter "s". In the given sentence, the interests of the teacher is different from the interest of the student. Hence, both the words "teacher" and "student" are to be suffixed with apostrophe followed by the letter "s". Hence the correct option is C.

Options A and B are incorrect because they do not follow the above pattern of possessive case.