What is the relationship between comets and meteor showers that we experience on Earth?
a. Comets are the source of meteor showers, as they release debris that enters Earth's atmosphere and causes the showers.
b. Meteor showers are unrelated to comets, as they are caused by the Earth passing through debris left behind by asteroids.
c. Comets and meteor showers are both caused by the same phenomenon, as they are both related to the gravitational interactions of celestial bodies.
d. Comets and meteor showers have no direct relationship, as they are separate astronomical events that occur independently of each other.