Answer: B. Parents try to give children what they can to help them have a better life.
Step-by-step explanation:
The option that identifies the theme of the text is that "Parents try to give children what they can to help them have a better life".
The detail from the text that supports the answer is when it was stated that there was nothing to give the child except the things regarding who he was and also where he came from. Since his pappy did something, he can do something as well.
Therefore, the correct option is B.