If vectors $|v ⃗ |=12$, $|u ⃗ |=100$ and the angle between $v ⃗$ & $u ⃗$ is $\theta=\frac{\pi}{6}$, calculate $v ⃗⋅u ⃗$ .

• A. $600$
• B. $600\sqrt3$
• C. $300\sqrt3$
• D. $300$