If Meselson and Stahl Had Observed One Intermediate, Slightly Smeared

Multiple Choice

If Meselson and Stahl had observed one intermediate, slightly smeared band after growing bacteria in the presence of ¹⁵N for one generation, and then after two generations in ¹⁴N again had found one slightly smeared band, they would most likely have concluded that DNA replicates

A) semiconservatively.
B) conservatively.
C) semidiscontinuously.
D) dispersively.
E) semicontinuously.