According to Kepler's Second Law (Law of Areas) and the conservation of angular momentum, a planet moves faster when it is closer to the Sun and slower when it is farther away.

1. Point A (Perihelion): This is the point closest to the Sun on the major axis. Here, the distance $r_A$ is minimum, so the speed $v_A$ is maximum. Consequently, the kinetic energy $K_A$ is maximum.
2. Point C (Aphelion): This is the point farthest from the Sun on the major axis. Here, the distance $r_C$ is maximum, so the speed $v_C$ is minimum. Consequently, the kinetic energy $K_C$ is minimum.
3. Point B: This point lies at the end of the semi-latus rectum (perpendicular to the major axis at the focus). Its distance $r_B$ is intermediate between $r_A$ and $r_C$ ($r_A < r_B < r_C$). Therefore, the speed and kinetic energy are also intermediate.

Thus, the order of kinetic energies is $K_A > K_B > K_C$.