It would be Alpha, If you need more, read up on the subject, if this is a mult. choice, than there is the answer. Good luck.
Answer:
C. by causing mutations in genes
Explanation:
Smoke can induce mutations in genes causing tumors such as lung cancer
<span>After HIV enters the body, how long does it take for enough antibodies to be developed to be detected?
</span><span>c. several months
(up to 3 months)</span>
