Question

33 ________ make(s) up 99.8% of the total mass of the solar system. the stars hydrogen the sun the planets

Explanation:

The Sun is by far the most massive object in the solar - system. It contains about 99.8% of the total mass of the solar system. Stars in the solar system just refer to the Sun as it is the only star. Hydrogen is a major component of the Sun but not the entity that makes up 99.8% of the solar - system's mass. Planets have a much smaller combined mass compared to the Sun.

Answer:

C. The sun