Answer:
A is the answer
Step-by-step explanation:
A student can show a teacher that he has good character traits by listening attentively in class. Every teacher's wish is for a student to pass his or her subjects so when a student listens attentively in class whiles the teacher I teaching, it shows the teacher that you are willing to succeed.
But when a student tries to answer every question in class, the teacher might not like and so will your colleagues in class you will be like the I know it all type so it would be better if you listen to whatever the teacher is saying.