<prompt> Translate the following text to EnglishSehemu kubwa ya uchambuzi inazungumzia mbadala zilizochukuliwa na sababu kwa nini viwango vya kiasi au utendaji vinavyohitajika kwa mipango ya kupandikiza na kuweka viwango maalum vya mgawanyo vinavyozingatia usawa wa kijiografia vilikataliwa kwa niaba ya viwango vya utendaji vilivyopitishwa.  <response>: The major portion of the analysis discusses the alternatives considered and the reasons why required volume or performance standards for transplant programs and imposing specific allocation standards focusing on geographic equity were rejected in favor of the performance standards adopted. 