Question for colonizing members of Eta Eta chapter?

[CutiePie2000]

Hello my Dee Gees of Spring Hill College!

My understanding is that HH chapter started out as a local called "Beta Chi" (building character) and then became a DG colony, then chapter.

So, my question is:

-How many other NPC groups (if any) presented to Beta Chi?
-Which ones were they?
-What made the ladies of Beta Chi choose Delta Gamma, over the others?

Thanks!