A smooth pipe of diameter 500 mm carries water. The pressure in the pipe at Section ‘A’ (elevation: 10 m) is 100 kPa. At section ‘B’ (elevation: 12 m) the pressure is 75 kPa and velocity is 4 m/s. Which of the following is true (g = 10 m/s2)

• A. Flow from A to B and head loss is 1 m
• B. Flow from A to B and head loss is 0.5 m
• C. Flow from B to A and head loss is 0.5 m
• D. Flow from B to A and head loss is 0.75 m