Each Choice Below Describes How a Few Astronomical Phenomena Are

Each choice below describes how a few astronomical phenomena are related to time periods. Which list is entirely correct? (Careful: some lists are partially correct.)

A) Earth's rotation defines a day. The Sun's rotation defines a week. The Moon's rotation defines a month. Earth's orbit defines a year.
B) Earth's rotation defines a day. The saros cycle of eclipses defines a month. Earth's orbit defines a year.
Earth's cycle of axis precession takes 26,000 years.
C) Earth's rotation defines a day. The cycle of the Moon's phases takes about a month. Earth's orbit defines a year.
Earth's cycle of axis precession takes 26,000 years.
D) Earth's rotation defines a day. The cycle of the Moon's phases takes about a week. Earth's orbit defines a year.
Earth's cycle of axis precession defines a month.

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