The correct answer is option C. "Give him a second chance and treat him more fairly".
Explanation:
In "An Indian Father's Plea" by Robert Lake, Medicine Grizzlybear believes in his son Wind-Wolf, therefore he argues with his teacher because he labeled his son as a slow learner. The teacher wrongly labeled Wind-Wolf because he didn't understand the way Native Americans learn. Medicine Grizzlybear instead of asking for making things easier for Wind-Wolf, he asks the teacher to give him a second chance and treat him fairly, as any child in his classroom.
The topic sentence is found at the beginning of the paragraph because the topic senence has the summary of what the paragraph eill be talking about and so it intorduces what you will be reading in the following paragraph.