$\sin x + \sqrt{3}\cos x = 2$ denkleminin çözüm kümesi aşağıdakilerden hangisidir?
A) $\{\frac{\pi}{3} + 2k\pi, k \in \mathbb{Z}\}$
B) $\{\frac{\pi}{6} + 2k\pi, k \in \mathbb{Z}\}$
C) $\{\frac{\pi}{2} + 2k\pi, k \in \mathbb{Z}\}$
D) $\{\frac{\pi}{3} + k\pi, k \in \mathbb{Z}\}$