The correct answer is C. eclipse.
An eclipse is an astronomical phenomenon that occurs when one celestial body passes in front of another, thereby totally or partly obscuring it. Totality occurs when the obscuring object is larger than the obscured object, blocking all direct light from the obscured object and causing the day to turn into darkness. Partiality occurs when the obscuring object is smaller than the obscured object and only hides a part of it.
There are three types of eclipses: solar eclipses, lunar eclipses, and planetary eclipses. Solar eclipses occur when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. Lunar eclipses occur when the Moon passes through the Earth’s shadow. Planetary eclipses occur when a planet passes through the shadow of another planet.
Eclipses are relatively rare events, as the orbits of the Moon and the planets are not perfectly aligned with the Earth’s orbit around the Sun. The next solar eclipse will occur on April 8, 2024, and the next lunar eclipse will occur on November 8, 2022.
A. Elliptic is a type of orbit that is slightly flattened compared to a circle.
B. Ecliptic is the apparent path of the Sun across the sky over the course of a year.
D. None of the above is the correct answer.