Consider the Following Lotka-Volterra System of Equations:

Which of These

Multiple Choice

Consider the following Lotka-Volterra system of equations:

Which of these statements are true? Select all that apply.

A) The solution trajectories all spiral away from the point $\left(-\frac{4}{5},-\frac{3}{2}\right)$ as $t \rightarrow \infty$
B) The solution trajectories are closed curves encircling the point $\left(\frac{4}{5}, \frac{3}{2}\right)$ .
C) The point $\left(\frac{3}{2}, \frac{4}{5}\right)$ is an unstable node.
D) The predator and prey populations exhibit a cyclic variation.
E) The origin is a saddle point.
F) The period of the solution trajectories is $\frac{2 \pi}{\sqrt{6.0}}$