Answer:
B. The theme of the text is that putting tasks off can ultimately cause you to miss out on fun.
Explanation:
The text states "Now he knew that Mom would say no to spending the weekend at Dawson's for some video game tournaments. Plus, he was sure Dad would add, 'Time sure flies when you are having fun, but some fun should be saved until after the hard work gets done.'" This supports that the theme of the text is that putting tasks off can ultimately cause you to miss out on fun, because now he will miss out on all of that fun because he put fun before work.