The two masses are both displaced downward by a small vertical distance x and simultaneously released from rest. What is the period of oscillation?
Answer Choices
A. 2 \pi \sqrt{l / g}
B. \pi \sqrt{2 m / k}
C. 2 \pi \sqrt{m / k}
D. 2 \pi \sqrt{m / k+l / g}
E. There is not enough information to decide.