A total solar eclipse occurs when the Moon completely obscures the Sun.
During the total solar eclipse, the stars that are not usually visible in the daytime become visible in the day time sky.
The corona is also visible during the total solar eclipse because the Moon blocks out the light from the photosphere, which allows us to see the corona.
Notice that a total solar eclipse is a rare event and does not happen very often.
Therefore, we can conclude that all the options are correct.
D. All of the above make it a worthwhile experience