First Question: http://www.sparknotes.com/lit/uncletom/themes.html
Second Question: http://www.sparknotes.com/lit/uncletom/themes.html
Answer C: fear.
The passage gives the idea that John feels fear in anticipation to a bad approach with Carolyn based on his previous experience with her.
Explanation:
When Richard Kennedy reads the Dr Ferguson Samuel's plan, he doesn’t feel pleased at all. He thought that the journey was quite adventurous. To add to his rage, he also came to know that the The doctor had remained nearly two years without hinting at new explorations and yet he wants to go for the adventure. However despite the disagreement between Richard Kennedy and Dr Ferguson Samuel, both supported each other also
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