If the dispersive model of DNA replication had been correct, Meselson and Stahl would have observed that DNA extracted from bacterial cells following a second round of DNA replication in 14N would have been:.
a. only of hybrid density, and somewhat light than after one round of replication.
b. only of hybrid density, and somewhat heavier than after one round of replication
c. of varying densities, spread throughout the gradient
d. all light density because the DNA molecules would have mostly 14N