I do n't remember much about them ... I remember my grandfather always cooked for us ... bought things for us ... I used to sleep with my grandmother ... we would talk at night ... In the morning , she would comb my hair , help me wear my socks , getting ready for school ...

Q with options: Give answer the following question using evidence from the above passage: Why is the narrator getting so nostalgic ?
Choose from:
[A]. They are thinking of their mother .
[B]. They are thinking of their family members .
[C]. They are thinking of their dad .
[D]. They are thinking of their father .
[B].