Identify the sentence that contains a misplaced or dangling modifier. a. after getting several open double quotecare packagesclose double quote from their parents, the children at the summer camp had an ample supply of cookies stashed away. b. although daphne tried to explain that silk was not the most practical choice for a travel wardrobe, the customer insisted on purchasing the blouse. c. having fallen behind the sofa cushion, i couldn't find my car keys for almost an hour. d. working in a restaurant on the weekends, joe gets several free meals as part of his job.

The sentence that contains a dangling modifier is C. Having fallen behind the sofa cushion, I couldn't find my car keys for almost an hour.

A dangling modifier is an ambiguous sentence in which the reader is not sure what the modifier modifies. In this case, grammatically speaking, "having fallen behind the sofa cushion" is modifying "I" when the intended meaning was, probably, that the keys had fallen behind the sofa cushion and that is why the writer could not find them for an hour.

C) Having fallen behind the sofa cushion, I couldn't find my car keys for almost an hour.

"car keys" should be the subject after the comma instead of "I".

This way the sentence would be saying the car keys have fallen behind the sofa cushion instead of you!