Cara is building a model of the solar system, which includes the Sun. She plans to include a written description to provide details about each piece in her model. In order for her model to be realistic, which of the following should she include in her representation of the Sun? She should show that sunspots can ve seen as white areas on the Sun's surface.

She should explain that the Sun is made up of gaseous layers that surround an iron core.

She should show that the Sun revolves around the planets, determining the length of the year.

She should explain that the Sun rotates, even though different parts rotate at different rates.