What is the liquid flow rate range that should be maintained in piping to be hot tapped?

What is the liquid flow rate range that should be maintained in piping to be hot tapped?
A . 0.05 – 2.7 ft./sec (0.015 – 0.82 m/sec)
B . 1.3 – 4.0 ft./sec (0.40 – 1.20 m/sec)
C . 2.3 – 3.3 ft./sec (0.70 – 1.00 m/sec)
D . 4.1 – 5.5 ft./sec (1.25 – 1.68 m/sec)

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Answer: B