The sun is the centermost star of our solar system.

a. True

b. False

I am pretty sure this is true

Yes, it is true.

Explanation:

Sun is the centremost part of our solar system as all the planets revolve around the sun due to the gravitational pull between the sun and the planet. The gravitational force of sun holds the entire solar system together keeping everything such as planets, asteroids, comets, etc. in their particular orbits.