Detailed explanation and options for the selected question.
Which virus is primarily responsible for the common cold?
A.
Influenza virus
B.
Coronavirus
C.
Rhinovirus
D.
Adenovirus
Explanation:
Rhinoviruses cause most common colds. Coronaviruses can cause colds but less frequently, influenza is flu, adenovirus can cause respiratory infection but not majority colds.
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