The vet said she could feel changes in his trachea already since he had stayed there , this tumor was very aggressive , as most chest and lung ones are . Boy they can go down quickly , and with not much warning ahead of time . However , I ' m very glad we were able to stop his suffering , it 's just not fair to feel badly all the time .
According to the above context, choose the best option to answer the following question.
Question: Why does the man not have much time to live ?
Options:
A. Their cancer is spreading .
B. Their infection is aggressive .
C. Their infection is spreading .
D. Their diabetes is getting bad .


A