Grammar mistake in the CommonApp

“One needs to take charge of every opportunity they are given.”

One is singular, they is plural. I already submitted it. How bad is this grammar mistake? Will it have a significant effect?

The singular “they” has been getting a lot of attention lately, though you probably weren’t intending to make some kind of pro gender neutrality inclusion statement. But I don’t think it’s bad at all.

Forget it. Read this: http://talk.collegeconfidential.com/what-my-chances/470497-clam-fart-oh-my-god-what-did-i-do-p1.html

@“Erin’s Dad” This is what I needed. Thank you