$$\color{rgb(0,0,255)}A\left( \frac{\pi}{4} \right)$$

$$\color{rgb(0,0,255)}B\left( \frac{2\pi}{3} \right)$$

$$\color{rgb(0,0,255)}C\left( \frac{5\pi}{6} \right)$$

$$\color{rgb(0,0,255)}D\left( -\frac{3\pi}{4} \right)$$

$$\color{rgb(0,0,255)}E\left( -\frac{\pi}{4} \right)$$