If you keep the sanitary system around yourself sound then the disease which will not most probably break out is:
The correct option is: C
Explanation of the correct option:
If you keep the sanitary system around yourself sound then the disease which will not most probably break out is cholera.
Cholera is a bacterial disease caused by Vibrio cholerae.
Cholera is transmitted by food and water contaminated with feces. Hence, if you keep the sanitary system around you clean, then it would not probably break out.
Explanation of the incorrect option:
Option A: Malaria is caused by protozoa Plasmodium. It is spread by mosquitoes.
Option B: beri-beri and scurvy are deficiency diseases. Beri--Beri caused due to deficiency of Vitamin B
Option D: beri-beri and scurvy are deficiency diseases. Scurvy caused due to deficiency of Vitamin C
Final answer: If you keep the sanitary system around yourself sound then the disease which will not most probably break out is cholera