Hema’s mother has a powerful connection to her Bengali culture, and she also has the culture of being a mother. She talks to Kaushik in Bengali language, yet also she also has the sympathy and care of a mother for her child, which is common in all cultures. Kaushik has a mix of American and Bengali culture, that’s why she understands Hema’s mother when she talks to him in Bengali, even though he replies in English. As Kaushik went to the market, he brought back broth and magazines which is quite popular in American culture. The passage shows how Jhumpa’s life is a mix of cultures that integrates with one another. She has Indian culture but was raised in American culture, and that entwines with the culture of her ancestors.
B: Informal style.
You can see this as the narrator says “the lead actor - I totally forgot his name - was crazy good.”
B, because there is quotations and you have to start a new line when someone else is talking.