A

\[\left\langle 2k\pi \frac{\pi}{3};(4k+1) \frac{\pi}{3}\right]\]

B

\[\left[(4k+1)\frac{\pi}{2}, (2k+1)\pi \right]\]

C

\[\left\langle (4k+1) \frac{\pi}{2}, 2k\pi + \frac{2\pi}{2} \right \rangle\]

D

\[\left\langle k\pi, (2k+1)\pi \right\rangle\]

E

\[\mathbb{R} - k\frac{\pi}{3}\]