To solve this question we will use the following diagram:
Therefore, the point in polar coordinates is:
[tex](2,\frac{4\pi}{6})\text{.}[/tex]
Now, notice that:
[tex]\frac{4\pi}{6}=\frac{2\pi}{3}\text{.}[/tex]
Therefore:
[tex](2,\frac{4\pi}{6})=(2,\frac{2\pi}{3})\text{.}[/tex]
Answer: Option A.
