Which of the Following Places the Steps in the PCR

Multiple Choice

Which of the following places the steps in the PCR procedure in the correct order?
1) Incubate at 94°C to denature DNA strands;
2) Incubate at 72°C for DNA synthesis;
3) Incubate at 60°C for primer hybridization.

A) 2; 1; 3
B) 1, 2, 3
C) 3, 2, 1
D) 1, 3, 2
E) 3; 1; 2