When you have to make it necessary the inputs of the form, which attribute is used?

Answer 1

You might have done a spelling mistake or probably the question was something else. Happens with me too :(

Answer 2

What was shown later as the correct answer? If you see any wrong question in challenge, then you can report it :)

Answer 3

required

Answer 4

There is no more than 8 letters to write .

Answer 5

required="required"

Answer 6

Sololearn don't show any explanations on challenges.☺

Answer 7

I faced that question in challenge using HTML, I wrote required too, but the answer was wrong.