Diseases are broadly grouped into infectious and non- infectious diseases. In the list given below, identify the infectious diseases:

(i) Cancer (ii) Influenza

(iii) Allergy (iv) Small pox

The correct option is B

(ii) and (iv)

Diseases that are transmitted from one person to another are infectious diseases. Influenza is a type of common cold that is transmitted through air by sneezing and cough. Allergy also spreads by transmission through air.