Under which of the following conditions is a person most likely to fall sick?
(a) when she is recovering from malaria.
(b) when she has recovered from malaria and is taking care of someone suffering from chicken-pox.
(c) when she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chicken-pox. Why?

Explanation

The possible reason is that she has recently suffered from malaria and her body's organ-systems are still not functioning normally. Moreover, she is on four days fast which has made her body weak due to improper supply of food. So, she is more prone to infections. Above all, she is taking care of someone who is suffering from most dreadful infectious disease, i.e., chicken pox. she has more chances of getting an infection due to above mentioned reasons.