Correct option is A
The correct substitution of the highlighted segment is (a) is smaller than yours.
Explanation:
· The comparison is between his house and your house. The possessive pronoun yours is used to avoid repetition of the word house.
· The correct sentence is: His house is smaller than yours.
Grammatical rule used:
· Possessive pronouns (e.g., yours, his, hers) replace nouns to indicate ownership.
Why other options are incorrect:
·
(b) is small as you: Incorrect, as it uses the wrong structure for comparison. The correct phrase should be as small as.
·
(c) is small than you: Incorrect, as small cannot be used for comparison without as or er.
·
(d) is smaller than your: Incorrect, as your requires a noun (e.g., your house) to complete the sentence.