HELP!!

The Earth is rotating around an axis. Some objects rotate around a horizontal axis, like a rolling log. Some objects, such as a skater, rotate about a vertical axis. The Earth's axis is tipped over about 23.5° from vertical. Earth's rotational axis points in the same direction relative to the stars, so that the North Pole points towards the star Polaris.

The rotation is responsible for what we call ; the tilt on the axis influences the .

A) a day; a year

B) a day; seasons.

C) a year; seasons.

D) a day; the phases of the moon