Consider the given two statements: 

Assertion (A): Antihistamines are important mainstay in the treatment of allergies. 
Reason (R): Histamine is secreted by mast cells in tissues and by basophils in bloods.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Allergies & Autoimmunity |
 68%
Level 2: 60%+
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What are autoimmune disorders?
1. Conditions in which the immune system attacks the body's own cells.
2. Disorders where the body fails to recognize pathogens.
3. Diseases caused by overproduction of antibodies.
4. Illnesses resulting from underactive immune responses.
Subtopic:  Allergies & Autoimmunity |
 95%
Level 1: 80%+
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