Answer:
I believe the sentence that best summarizes a theme of the story is:
B. Mothers teach their children important lessons.
Step-by-step explanation:
Ji-Suk is the main character in the story "Bul-Go!-gi". Growing up, she obeyed her Korean mother and embraced her original culture as well as her American culture, but in her mother's way. Ji-Suk's mother believed academic accomplishments and a high status job equal success and happiness. Now, however, Ji-Suk has dropped all that to have her own food truck. Yet, she is not disrespecting her mother's lessons. Quite the contrary, she carries everything her mother has taught her in her heart.
Ji-Suk has a different approach with her own son, though. She does not force him to do anything. Unlike her mother, she is allowing him to figure things out on his own. By the end of the story, after asking herself if she is not making a mistake, Ji-Suk realizes her son is indeed learning important life lessons from her. Just like she did from her mother.
Therefore, we can say the theme of the story is "mothers teach their children important lessons."