What is the specific flux of the system if it contains 75 sq. ft. of filter area and operates for 24 hours at a flow rate of 5 gpm? Assume that the water temperature is 20℃ and the TMP of the system is 20 psi.

• A. 5.6 gfd/psi
• B. 4.8 gfd/psi
• C. 9.4 gfd/psi
• D. 5.5 gfd/psi