correct question?

English as a Second Language English Vocabulary, Grammar and Idioms
1

For this answer - ‘I am going with my aunt.’
which one is the correct question given below:

  1. Are you going with whom?
  2. With whom are you going?
  3. Who are you going with?
    Thanks.
2

2 is correct
3 is accepted in circumstances other than grammar exams (and even some of the less stringent exams accept it these days.)