Do you think that a company can own an organism? can it sell that organism to the highest bidder? if someone changes that organism slightly, can that person patent the change organism?

Yes, a company can own an organism. There was a time when it was not allowed for a company to have ownership of an organism but now it's possible including the selling of the said organism to bidders. The person can patent that changed organism provided that the organism has not been patented before.

Ibelieve the answer is c.