Which sentence uses commas correctly? a. i sent postcards to seth julie, and marty. b. i sent postcards to, seth, julie, and marty. c. i sent postcards to seth, julie, and marty. d. i sent postcards to seth, julie and marty.

breathe, think and analyze the situation, pull them aside and talk to them about it

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.