Correct Answer : East point of the horizon, Zenith & the West point of the horizon
Explanation : The Prime Vertical passes through the East point of the horizon, Zenith & the West point of the horizon. The vertical circle needs two opposite points on the horizon to connect; otherwise, it will become triangular in shape instead of a half-circle. So the vertical circle cannot pass through East South & North West pair of points. The vertical circle passing through North point of the horizon, Zenith & the South point of the horizon is known as Local Celestial Meridian (LCM).