D is incorrect because it is a run-on sentence.
The answer would be synonym. A synonym is a word that means almost the same thing as another. When you pamper a pet you give them a lot of attention, or spoil them.
The correct answer is B A worn yellow quilt was lying at the foot of the antique bed, a gift from their grandmother.
This is a run-on sentence because there shouldn't be a comma after bed. It should be an entirely new sentence after, or something like a dash or a semi colon.
