The figures below shows three steps (A,B,C) of polymerase chain reaction (PCR). Select the right
one
A. C-Extension in the presence of heat stable DNA polymerase
B. A-Annealing with two sets of primers
C. B-Denaturation at a temperature of about `98^(@)C` separating the two DNA strands
D. A-Denaturation at a temperature of about `50^(@)C`
