1. The base of the solid is the region bounded by the curve y = 2 + sin x, the y-axis, x = 0 and x = 3/2. The cross sections perpendicular to the x-axis are:

a. Squares

b. Equilateral triangles

c. Isosceles right triangles with leg on the base

d. Isosceles right triangles with hypotenuse on the base

e. Semi-circles

f. Quarter-circles

g. Isosceles trapezoids with 60o base angles whose longer base is in the base of the solid and the shorter base is equal to the leg.