Random mutation

Out of these 3, random mutation sounds as safest option, so I chose this.

"WELL WELL WELL, WHAT A DARING GIRL WE HAVE!!! I think that Rebecca doesn't even know what awaits her!" he said as if he was pleased with my choice. "Well... bring the mutation wheel!" As he said that, large wheel with countless mutations was brought in. All I could read in that speed were some multiple limbs, breasts and some body-parts swap. Oh my, what did I sign myself into?

"Now Rebecca, could you please spin the wheel so we will see what mutation will you get?" I didn't want to spin, but I was forced to. As the wheel spinned, I just hoped that it will be some less extreme transformation that what I saw in that speed. Suddenly, wheel stopped. As I looked up, I saw what I got...