Please refer to the attachment for the explanation and answers to your questions.
Answer:
He is a lonely, timid man living in the early 1900s
God I read this so long ago but assuming Bob is the guy accused of beating the white guy's wife, I think the book lets the reader know that he's left handed through Atticus's demonstration when Atticus threw something at Ewell and he caught it with his left hand. Atticus then asks why he didn't catch it with his right and then Ewell says he hurt it when he was younger.
Answer:
c. the reason characters behave the way they do
Explanation:
A motivation is reason why people behave the way they do, their goal, the leading outcome that they wish to achieve through their actions.
An example of motivation is "the wish to win the marathon".
Can you please explain your question better?