WOW O_o
I would've just kept my mouth shut. Not to hate on the big girls, but she should know a thing or two about stuff orbiting the sun. She's wearing yellow too, bwahahaha. Just sayin'...
Btw, the answer is
EDIT: Guess we're both dumber than fifth-graders. Neptune takes the longest to orbit the sun, MERCURY takes the least amount of time. Just checkin' to see if anyone caught that, lmao. Thanks for the heads up Mike!