When the narrator says "I'm sorry I never told him how sorry I was," (Para 12) he means that _____.
A.
"I regret that I never apologized to my father before he died"
B.
"I regret I never really understood what sorry means"
C.
"I apologized to my father for my reluctance to walk with him"
D.
"I apologized to my father for my lacking a good heart"