Match the Steps of Two Rounds of PCR with an Appropriate

Short Answer

Match the steps of two rounds of PCR with an appropriate description. ​
-All double-stranded DNA separates into single strands after mixture is reheated. After it cools, primers base-pair with the targeted sequence in the original template DNA and in the new DNA strands.
A)A
B)B
C)C
D)D
E)E