Answer: C. I took the opportunity of being alone in the courtyard to look at my coarse hands and my common boots
Explanation:
The theme of Great Expectations is about loyalty, conscience, and affection. It shows that these are more important than class, wealth and social advancement.
The sentence that introduces the conflict that develops the theme great expectations by Charles Dickens is "I took the opportunity of being alone in the courtyard to look at my coarse hands and my common boots".