The correct option is
A Children between 0 to 5 years of age
Children younger than 5 years old are more likely to contract the virus
than any other group. Poliovirus is often transmitted from
person-to-person through fecal matter. People living in areas with
limited access to running water or flush toilets often get the virus
from drinking water contaminated by human waste that contains the virus.
In addition, the virus can be spread by contaminated food or water or
direct contact with another infected person. According to the May
Clinic, the virus that causes polio is so contagious that anyone living
with an infected person will likely become infected themselves. Pregnant
women, people with weakened immune systems, such as HIV+ people, and
young children are the most susceptible to the polio virus.
So, the correct answer is 'Children between 0 to 5 years of age'.