I also chose option 2 and was told that it's not correct.

It seems that the "answer" is both options 2 and 3, which is incorrect. option 3 does not result in the sample output given the sample input.

According to the explanation of the answer only option 2 is correct.

This is my first time answering a question of the day, but clearly there seems to be something wrong here. What's going on with this question?