Consider the following statements.I. Syphon falls are commonly used where high levelled small drains do out-fall into a low levelled bigger drain.II. The D/s well is necessary in case of falls greater than 1.8 m and for discharges greater than 0.29 cumecs.III. The design discharge is determined based on the fact that V-notch is used.Which of the following statement is correct?

Consider the following statements.I. Syphon falls are commonly used wh

1.	Consider the following statements.I. Syphon falls are commonly used where high levelled small drains do out-fall into a low levelled bigger drain.II. The D/s well is necessary in case of falls greater than 1.8 m and for discharges greater than 0.29 cumecs.III. The design discharge is determined based on the fact that V-notch is used.Which of the following statement is correct?
A.	I only
B.	II only
C.	I and II
D.	I, II and III
Answer» D. I, II and III