Answer:
The correct choice is A) Amy had never liked the carpet's color.
In this sentence, the possessive form of "carpet" is indicated by the apostrophe followed by the letter "s" ('s). This shows that the color belongs to the carpet.
Option B) "Amy had never like the carpet's color" is incorrect because it uses the present tense "like" instead of the past tense "liked."
Option C) "Amy had never liked the carpets' color" is also incorrect because it uses the plural form "carpets'" instead of the singular possessive form "carpet's."
Therefore, option A) is the correct choice as it accurately uses the singular possessive form "carpet's" and the past tense "liked" to indicate that Amy had never liked the color of the carpet.