"....KD needs to know if Ababetalone is what it is. He owes 19.6 % of RVX. To extend his guarantee will not cost him a cent. But if he doesn't will cost him plenty. He is caught between a rock and a hard place...."

No one would extend such a guarantee for free.  He will (at least) get another pile of warrants as he did the last two times, plus annual fees.