The correct answer is A) comfort.
The other options of the question were B) favor C) present. D) punishment.
It was a consolation to the students that they would repeat the exam if they did their best. It was comfort.
Students felt relief when they were noticed about the repetition of the exam if they improved their performance. They were comfortable with the decision. That is how you feel when a decision appeals to you. In this case, students knew that they could have a second chance.