Unable to submit the task

Hi everyone, I’m new here and just learning the first lesson today. There was a problem that I couldn’t submit the task. I’m sure that my answer is correct but when ever I hit submit it says: Please retry and hit ‘Submit’ to continue .

Please help! thank you!

Try a semicolon. That’s what the hint shows.

I also had the same problem, but with radio buttons. Turns out you just need to give the right answer, it doesn’t accept wrong answers.