Which sentence contains a correlative conjunction?

not only did phil wash the dishes for his wife, but he also vacuumed the floors.

the calico cat tip-toed across the wooden floor while stalking the mouse.

logan did not complete his project, nor did he study for his test.

since you asked politely, i will watch your dog while you are on vacation.

vanessa and whitney went out for ice cream after the meeting.

Why might carl sandburg have placed an emphasis on politeness among the animals in the committee of sixty six and in the interactions the animals have with humans in "how the animals lost their tails and got them back traveling from philadelphia to medicine hat"? a. to show that animals are more polite than humans b. to poke fun at the extreme politeness of the animals c. to teach children how to interact with adults d. to teach children how to interact with animals asap