The nouns in the sentence are Cecil and grass.
Once in A Lifetime is from the 2nd part of Jhumpa Lahiri's Unaccustomed Earth which is the collection of short stories. Like the other stories this story also deals with the cultural issues of Bengali Americans. Told from the perspective of the third-person, according to the option C, the narrator tells the difference of the modest house of her friend in this excerpt.
The second one, Marcus said, "It's not the end of the world. You should be happy for me."