Morrie Schwartz Says, in His Conversation with Mitch, "Once You

Morrie Schwartz says, in his conversation with Mitch, "Once you learn how to die, you learn how to live." What does he mean?

A) Death is no different from life.
B) When you die, you live in the hereafter.
C) When you accept the reality of death, you become more appreciative of life.
D) Death dominates life, leaving the day-to-day realities of life meaningless.