The children often have a difficult time adjusting to be ill because they do not get ill often.
The correct option is B.
Illness is any disease or sickness which affects the mind and body.
There are many reasons to be ill. You can be impacted by bacteria or viruses.
Cold, allergies, headache, flu all are examples of illnesses.
Children don't get ill that fast because they have a good immune system.
Thus, the correct option is B, They do not get ill often.
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