Select the correct option to substitute the highlighted segment in the given sentence. If no substitution is required select ‘No substitution’.
Her smile is similar to her mother.

Correct option is B

The correct substitution of the highlighted words is (b) her mother’s.
Explanation: The sentence is comparing "her smile" to the smile of her mother. Therefore, the possessive form “her mother’s” is needed to show that the smile belongs to her mother.
Grammatical rule used:
➡️ When comparing two nouns where possession is implied, the possessive form should be used to avoid ambiguity.
Example: His painting is better than John’s (not John).
�� Booster:
Always use the possessive form when the noun is omitted but the possession is understood—especially in comparisons like “His car is faster than Mike’s.”