Question

multiple-choice question how many solar systems are there? there are billions. scientists have no idea. just 1 - ours! there are 8 total. rewatch

Explanation:

In the universe, a solar system consists of a star (like our Sun) and its orbiting planets, moons, asteroids, etc. There are billions of stars in the Milky Way galaxy alone, and most stars are likely to have their own solar systems (planetary systems). Scientists have detected thousands of exoplanets (planets outside our solar system) and infer that there are billions of solar systems in the universe. The option "Scientists have no idea" is incorrect as they have evidence to estimate. "Just 1 - ours!" is wrong because other star systems with planets exist. "There are 8 total" is incorrect (8 is the number of planets in our solar system, not total solar systems). So the correct option is the one stating there are billions.

Answer:

A. There are billions.