Assertion :Epstein-Barr virus is an oncovirus. Reason: It stimulates the growth of cancer.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
The Epstein Barr virus (EBV) was the first described oncovirus (cancer causing virus), which has been associated with the development of a variety of lymphoproliferative disorders, such as Burkitt, primary CNS, NK/T-cell, plasmablastic and Hodgkin lymphoma. EBV infection occurs early in childhood, and approximately 90 to 95% of adults worldwide are EBV-seropositive. However, being EBV-positive (a very common virus) does not mean one will develop a lymphoma, or that one is at considerably high risk.
So, the correct answer is option A.

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