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.
An author of a detective novel is most likely to use figurative language to help the reader visualize a character.
These writers will use figures of speech such as similes, metaphors, personifications, etc. in order to describe their characters and make them easier to visualize for the audience. Oftentimes, these characters have very distinctive characteristics about them.
Idiom is an expression particular to a region
