Answer:
a. Genes are taken from bacteria, and those genes are inserted into corn.
Explanation:
This is an example of TWO clauses (sentences) being brought together by a comma.
i believe it is C becuase B would be 2nd, and D would be 3rd.
If I were to read " Stop the Spread of Superbugs" I would ask " I would ask what are Superbugs and how did they start spreading in the first place?"
On the second one I would ask, "How would resisting antibiotics be a threat in 2013?", and " Was here a virus that started?"
Fiction is as important as non fiction