Which lines confirm the theme of “Growing old can affect family relationships”?

A.
who used to laugh like the letter k/is sick/is a doorknob tied to a sour stick/is tired shut the door (lines 12-15)

B.
Abuelito who throws coins like rain/ and asks who loves him/ who is dough and feathers (lines 1-3)

C.
who tells me in Spanish you are my diamond/ who tells me in English you are my sky/ whose little eyes are string (lines 7-9)

D.
is the rain on the roof that falls like coins/ asking who loves him/ who loves him who? (lines 23-24)