What is the basis for the difference in how the leading and lagging strands of DNA molecules are synthesized?Question $74$ options:The origins of replication occur only at the $5\text{'}$ end.Helicases and single$-$strand binding proteins work at the $5\text{'}$ end.DNA ligase works only in the $3\text{'}5\text{'}$ direction.DNA polymerase can join new nucleotides only to the $3\text{'}$ end of a growing strand.Polymerase can work on only one strand at a time.