During $DNA$ replication, the term leading template is applied to the one which replicates itself in $A$ and the replication is $B$.

• A
  $A - 5' \rightarrow 3'$, $B - \text{Continuous}$
• B
  $A - 3' \rightarrow 5'$, $B - \text{Continuous}$
• C
  $A - 5' \rightarrow 3'$, $B - \text{Discontinuous}$
• D
  $A - 3' \rightarrow 5'$, $B - \text{Discontinuous}$