The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water
is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring
may be expected at the point of reduced level
(A) 1500 m
(B) 1505 m
(C) 1475 m
(D) 1485 m