ANSWER:

If you guessed type AB, that is our bet too! 

After all, blood of type AB was found on the cloth believed to be the Shroud of Turin, which wrapped Jesusí crucified body and which bears an image of His face. Blood type AB was also detected on the Sudarium of Oviedo, a piece of cloth believed to have covered and cleaned Jesusí face.

But thereís more! Remember the Miracle of Lanciano in 711 A.D. where the bread and wine turned into visible flesh and blood during the Mass of a doubting priest? The flesh and blood from the miracle are preserved in a church in Italy. In the 1970s, the flesh was tested and determined to contain blood of type AB. Then, the pellets of blood were tested and came up as AB as well!
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CATHOLIC TRIVIA