Statement : Every year, at the beginning or at the end of the monsoons, we have some cases of conjunctivitis, but this year, it seems to be a major epidemic, witnessed after nearly four years.

Courses of Action :
I. Precautionary measures should be taken after every four years to check this epidemic.
II. People should be advised to drink boiled water during rainy season.

Explanation:-

The disease occurs at the end of monsoons every year. So, precautionary measures every four years shall not help. The second course of action shall be a preventive measure. So, only course II follows.