There are many types of conflict. Person Vs. Person is a conflict between two different people. Man Vs. Man is conflict between one person and his inner emotions. Person Vs. Environment is a conflict between one person and the surrounding environment. B. would be your best answer for a Person Vs. Environment conflict.
<span>Never give up. is your answer.
Note that, even though the mission is almost impossible, the character "<em>never gives up trying</em>" to accomplish it, which means that "Never give up" is the theme of the story.
hope this helps</span>
ANSWER: B
Frank walked in the house and set down his bag of books