He preferred to be addressed as princeps
I think you mean here organ transportation.
An ideal organ transportation is within the same person - that way, that person's immunological system won't attack that person's new organ.
Such transplantations are actually happening at times, in the case of skin drafts - a person's skin can be transplanted into another part of their body.
Answer:
Considering how close it is
Explanation:
Socially useful part of society.
(:
