A) They last for a long time, may be as much as a life time.
B) A person suffering from a chronic disease always recovers completely after treatment.
C) They do not cause long term bad effects on human health.
D) These include Alzheimer's disease, cholera, arthritis, cancer, etc.
Correct Answer: A
Solution :
Chronic diseases are long term medical conditions that are generally progressive. Some examples of chronic diseases include Alzheimer's disease, arthritis, diabetes, few heart diseases, etc. Such diseases generally cannot be prevented by vaccines or cured by medication nor do they just disappear. They have long term bad effects on health of people.
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