If a Unrelated Donor Is Being Considered for Progenitor Cell

If a unrelated donor is being considered for progenitor cell transplant, which molecular HLA typing method below is required before final transplant can occur?

A) Low- resolution PCR sequence specific oligonucleotide primer typing
B) High- resolution PCR sequence specific oligonucleotide primer typing
C) Sequence- based typing
D) High- resolution PCR sequence specific probe typing
E) Low- resolution PCR sequence specific probe typing