Answer:
C. Tiny
Explanation:
(assuming that <em>minute</em> is the italicized word)
as an adjective, minute means something that is super small.
One reason is that say someone is on bed rest/in the hospital not allowed to move, it can make them very week and make it very hard for them to walk again.
The final lecture in which Julian gave to her mother ironically applies more to him than his mother. It is because his mother's death was the least expected thing to happen yet it happen therefore Julian needs to accept it and face the new world without his mother.