The primary tone of the narrator in the selection is being "sympathetic", which is letter C. among the choices. The excerpt flows from the time he felt guilty for his actions, that's why he was being comforted to the point where he already felt that everything is a joke and he still regrets confessing to moushumi.
Answer:
When a father gives to his son, both laugh; when a son gives to his father, both cry. My father taught me not to overthink things, that nothing will ever be perfect, so just keep moving and do your best. We think our fathers fools, so wise we grow.
The answer to this is conclusion I believe