In Regard to Ulama, Which of the Following Is True

In regard to ulama, which of the following is true?

A) it was played with a ball made of animal skin that was stuffed with fine sand.
B) teams were chosen by female priestess who selected males between the ages of 16 and 26.
C) each team had 8 athletes.
D) teams were assigned certain colors that would enable the fans to identify athletes with particular teams.
E) None of the above.