70.874 L/s of water flowing in a round pipe that flows in a laminar direction. Considering that the critical Reynold's number is 2000, what is the diameter of the pipe necessary to ensure a laminar flow? the viscosity of water is 4.75x10^-5ft/s choices a. 33.50 ft b. 41.70 ft c. 12.50 ft d. 38.75 ft