Three students did not prepare for a test

Three students did not prepare for a test.They made a plan. They went to the principal next morning and said, "Sir, we had gone for a wedding and our car tyre bursted. So we had to push all the way could not study." The college principal agrees and gives them five days time. After five days all the three students were seated in "different rooms" and the question paper consisted of only 1 question.......

WHICH TYRE WAS BURSTED ?

1.Front right

2.Front left

3.Back right

4.Back left