You can't listen to Ariza who has a clear motive. The founder of VADA is on record stating Pac has already been tested. If she is lying VADA loses all credibility, and it will certainly come outt if she is lying so it doesn't seem likely she would.

Let's play a game of "more likely"

A)Ms. Goodman is lying putting her entire company in jeopardy
or
B)the guy with an axe to grind is grinding his axe