How long does it take to get a nail art license?

pu1. There are four exams a year every three months, but if you get it the fastest, you can get it in three months

2019-07-03

OK

pu2. Someone I know got accepted in half a year. I took the test twice

2019-07-03

OK

pu3. If you don't make a mistake, you can do it in three months

2019-07-03

OK