. We should first help the cat and then we can write the exam. Because we can explain the teacher that why we were late I am sure the teacher would understand. If you would not helped the cat no one would help it because we are so busy that we forget our humanity.
Hope so my answer has helped u...☺
but what if the teacher doesn't listen to us ?
From my point of view, I will take the kitten with me to my exam place / school and do my exam after putting the kitten in a medical room