The set of values of `theta` satisfying the inequatioin `2sin^(2)theta-5sintheta+2 gt 0, ` where `o lt theta lt 2pi`, is
A. `(0,(pi)/(6)) cup ((5pi)/(6),2pi)`
B. `[0,(pi)/(6)] cup [(5pi)/(6),2pi]`
C. `[0,(pi)/(3)] cup [(2pi)/(3),2pi]`
D. None of the above