He was on a new medication that suppresses the immune system , and that 's where the pneumonia came from . This contributed to Mac 's death . He was so young and talented . It is so sad to see someone lose their life at such a young age .
According to the above context, choose the best option to answer the following question.
Question: Why may have Mac ultimately passed away ?
Options:
A. He got hit by a car .
B. He got murdered .
C. He got attacked .
D. The medicine adversely affected him .


D