Sewage from our homes as well as from hospitals are likely to contain many undesirable pathogenic microorganisms, and its disposal into a water body without proper treatment may cause outbreak of serious diseases, such as
a. Dysentery b. Common cold c. Typhoid d. Pneumonia e. Jaundice f. Cholera
A. a, b, c and e
B. b, c, d and f
C. a, c, e and f
D. a, b, c, e and f