City A is a community of 100,000 persons. During 1990, there were 1,000 deaths from all causes. There were 300 cases of AIDS: 200 in males and 100 in females. During 1990, there were 60 deaths from AIDS, 50 in males. The proportionate mortality due to AIDS is___ a. 20%
b. 30%
c. 6%
d. 3%
e. Cannot be completed from the data given.