(b).
| Temperature (°C) | Time (sec) | Cycle |
|---|---|---|
| 94 | 60 | X 1 |
| 94 | 20 | X 2 |
| 57-52 | 20 | |
| 72 | 30 | |
| 94 | 60 | X 15 |
| 51 | 20 | |
| 72 | 30 | |
| 72 | 60 | X 1 |
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