Which of the following are characteristic of Rh negative blo…

Which of the following are characteristic of Rh negative blood type? a: Always has Rh (anti-D) antibodiesb: Only under certain conditions will Rh (anti-D) antibodies be presentc: Always has Rh (D) antigend: Only under certain conditions will the Rh (D) antigen be presente: Is inherited independent of the ABO group