Answer:
The lagging strand contains Okazaki fragments
Step-by-step explanation:
During DNA replication, the two strands of DNA are separated and replicated via distinct mechanisms.
The leading strand is synthesised continuously by DNA polymerase in the 5'-3' direction.
However, DNA polymerase can only work in one direction (5'-3') so the other strand cannot be synthesised continuously in the reverse direction.
The other strand, the lagging strand, has to be synthesised discontinuously in the 5'-3' direction. This forms fragments- called Okazaki fragments - that are later joined up.
This is much easier to visualize than to explain, check out the video titled "DNA replication - 3D" on Y0utube by yourgenome to see it in action!