Strands of DNA join together with Hydrogen bonds. These bonds form between the Nitrogenous bases. These bonds are specific and only occur between:
A. A and T form 3 bonds, and G and C form 2 bonds
B. A and G form 3 bonds, and T and C form 2 bonds
C. A and T form 2 bonds, and G and C form 3 bonds
D. U and T form 3 bonds, and A and C form 2 bonds