The correct answer is A.
The ideas in this sentence are not coordinated at all. They are merely two sentences linked by the conjunction "and."
In order to coordinate it correctly, a more appropiate conjunction should be added. One possibility would be the word "also."
Overall, Thoreau wanted to prove that not everyone will easily flow with the rules of society. As a result, he calls the people who go different paths than the ones of society "different drummers."
In conclusion, your final answer should be A.
The definition of amiability is the quality of having a friendly and pleasant manner, and out of the choices the answer is likely to be
B. Joviality
due to the fact that Joviality means the same thing
The answer is unfortunately bc it the only one that makes sense