The number of values of x in the interval `[0, 3pi]` satisfying the equation `2sin^2x + 5sin x- 3 = 0` is

Options

A. `pi/6, (5pi)/6, (13pi)/6, (8pi)/3`
B. `pi/3, (5pi)/6, (13pi)/6, (8pi)/3`
C. `pi/6, (5pi)/6, (7pi)/6, (8pi)/3`
D. `pi/3, (13pi)/6, (8pi)/3, (7pi)/6`

Answer

A