Phương trình \(2{\sin ^2}x + 5{\mathop{\rm sinx}\nolimits}  + 2 = 0\) có nghiệm là:

A. \(x =  - \frac{\pi }{6} + k\pi ,x = \frac{{7\pi }}{6} + k\pi ,k \in Z\)

B. \(x =  - \frac{\pi }{6} + k2\pi ,x = \frac{{7\pi }}{6} + k2\pi ,k \in Z\)

C. \(x =  - \frac{\pi }{3} + k\pi ,x = \frac{{4\pi }}{3} + k\pi ,k \in Z\)

D. \(x =  - \frac{\pi }{3} + k2\pi ,x = \frac{{4\pi }}{3} + k2\pi ,k \in Z\)