Answer: The correct answers are "A. Accept" and "$ 0.01".
Explanation: Given that we talk about optimal strategy when maximizing the expected profit by the player:
In the first case It is convenient to accept the proposal and keep $ 0.12, instead of rejecting it and running out of nothing.
And in the second case it is convenient to give the classmate as little as possible so that he accepts and we have a greater profit.