If the points $z_1$ and $z_2$ are on the circles $|z| = 2$ and $|z| = 3$, respectively, and the angle included between these vectors is $60^\circ$, then the value of $\frac{|z_1 + z_2|}{|z_1 - z_2|}$ is\\
(A) $\sqrt{\frac{19}{7}}$\\
(B) $\sqrt{19}$\\
(C) $\sqrt{7}$\\
(D) $\sqrt{\frac{7}{19}}$