A curve is drawn to pass through the following points
x :1 1.5 2 2.5 3 3.5 4
y: 2 2.4 2.7 2.8 3 2.6 2.1
The area bounded by the curve, the x-axis and the lines x = 1 and x = 4 obtained by using Simpson's one-third rule is
(a) 7-81
(b) 7.78
(c) 7.74 2
(d) 7-72
