Help please it's due in 20 minutes and I can't find the answers;-; help

This is the star at the center of the solar system around which the earth and other matter orbit

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

Which of the following is true about the speed of light? it depends on the wavelength.