Talking about a subject with classmates can be considered activating prior knowledge t/f

the answer to this would be true. it can help you to talk about the different subjects

The given statement is true

Talking about different subjects with classmates increase the knowledge of subject and it is also beneficial to remove any query in the mind. Prior knowledge is the knowledge that the learner already has with him before they get some new information about it. Good understanding of a subject can be developed by activating the prior knowledge before dealing with that subject and it is a good habit to talk to classmates about different subjects.

explanation:

i would say or you because there is no harm in doing so. since the other person said something nice to you. you should also say something nice back to them too.