What was similar about the Mayan and Aztec calendars(pick only one answer)

Question

Both had two smaller units called the Haab and the Tzolkin.
Both were based off of the Incan calendar and had a similar appearance to it.
Both were made up of two cycles that were used together to create a larger 52-year cycle.
Both were built from observations of the moon that consisted of 30-day units.

Answer 1

Both were made up of two cycles that were used together to create a larger 52-year cycle.