Respuesta :
The least likely reason that pigs have been as donors for humans in the process of xenotransplantation is pigs are of known diseases. It is any procedure contains the transplantation.
What is an example of xenotransplantation?
Xenotransplantation products include those from transgenic or nontransgenic not human , animals and composite products that contain xenotransplantation products in combination with drugs or devices.
Thus, option, "A" is correct.
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