Which of the following is correct regarding individuals who are blood type AB?

A) Their blood cells clump when they receive blood from an individual with the genotype IAi.
B) They express B- transferase that adds N- acetylgalactosamine to the H antigen.
C) They do not carry the A or B antigen.
D) They are the universal recipients.
E) They carry both the anti- A and anti- B antibodies.