If the Earth Goes Around the Sun, Why Is the Ecliptic

Multiple Choice

If the Earth goes around the Sun, why is the ecliptic not lined up with the celestial equator?

A) the ecliptic is a circle fixed in the sky, but the celestial equator is different for observers at different latitudes
B) the Earth's orbit is not a circle but an ellipse
C) the Earth's axis is tilted by about 23 degrees from the vertical
D) the pull of the other planets makes the Earth wobble significantly in the course of a year
E) the land mass of the Earth is more concentrated in the Northern Hemisphere