What Was the Purpose of the IAU Establishing 88 Official

Multiple Choice

What was the purpose of the IAU establishing 88 official constellations?

A) To allow ancient stories of each constellation to be preserved
B) To name all constellations the same across any culture
C) To identify which constellation was created by which culture
D) To define boundaries for constellations including every part of the sky
E) To include additional, fainter stars within a constellation