Question

In a double helix, what holds the two DNA strands together?
A. A Hydrogen bond that forms between adenine and guanine
B. A hydrogen bond that forms between thymine and cytosine
C. Hydrogen bonds that form between adenine and guanine and between cytosine and guanine
D. Hydrogen bonds that form between adenine and thymine and between cytosine and guanine

Answer 1

Remember that A pairs with T and C pairs with G.

Answer 2

@thomaster

Answer 3

Need confirmation and possibly explanation ;p