The Earth and the Solar System — practice question

Comets travel around the Sun. Which statement best describes a comet’s orbit?

• AThe orbit is circular with the Sun at the centre of the circle.
• BThe orbit is circular with the Sun not at the centre of the circle.
• CThe orbit is elliptical with the Sun at the centre of the ellipse.
• DThe orbit is elliptical with the Sun not at the centre of the ellipse.