If Complementary DNA Strands Were Arranged in a Parallel Manner

Multiple Choice

If complementary DNA strands were arranged in a parallel manner, what would you expect to see?

A) Complementary nucleotides would be attracted to each other, forming ionic bonds that would make the helix stable but not uniform in width.
B) Charges of complementary nucleotides would repel and no hydrogen bonds would form.
C) Complementary nucleotides would line up properly; but fewer hydrogen bonds would form, so the strands could be more easily pulled apart.
D) Purines would pair with both purines and pyrimidines due to the closer alignment of the parallel strands.
E) There would be no discernable difference between DNA strands aligned in a parallel versus an antiparallel manner.