Giải phương trình 4 (sin^4 x + cos^4 x) + căn bậc hai của 3 sin4x = 2

A. $\left[\begin{array}{c}x=\frac{\mathrm{\pi }}{4}+\frac{k7\mathrm{\pi }}{2}\\ x=-\frac{\mathrm{\pi }}{12}+\frac{k7\mathrm{\pi }}{2}\end{array}\right.\left(k\in Z\right)$

B. $\left[\begin{array}{c}x=\frac{\mathrm{\pi }}{4}+\frac{k\mathrm{\pi }}{2}\\ x=-\frac{\mathrm{\pi }}{12}+\frac{k\mathrm{\pi }}{2}\end{array}\right.\left(k\in Z\right)$

C. $\left[\begin{array}{c}x=\frac{\mathrm{\pi }}{4}+\frac{k5\mathrm{\pi }}{2}\\ x=-\frac{\mathrm{\pi }}{12}+\frac{k5\mathrm{\pi }}{2}\end{array}\right.\left(k\in Z\right)$

D. $\left[\begin{array}{c}x=\frac{\mathrm{\pi }}{4}+\frac{k3\mathrm{\pi }}{2}\\ x=-\frac{\mathrm{\pi }}{12}+\frac{k3\mathrm{\pi }}{2}\end{array}\right.\left(k\in Z\right)$