50. Which of the following statements correctly describes the difference between the leading strand andthe lagging strand in DNA replication?
(A) Both of the leading strand and lagging strand require an DNA primer.
(B) The leading strand is synthesized continuously in the 5' →3' direction, while the lagging strand issynthesized discontinuously in the 5'→ 3' direction.
(C)The leading strand is synthesized in the 3'→5' direction in a discontinuous fashion, while thelagging strand is synthesized in the 5'→ 3' direction in a continuous fashion.
(D) There are different DNA polymerases involved in elongation of the leading strand and the laggingstrand.