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3 votes
What are the four major blood groups?

A: A, B, O and AO
B: AB- O+, AB+, and O-
C: A, B, AB, and O
D:A, B, C, and D

Help plsss

User Magcus
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5.1k points

1 Answer

3 votes
I’m pretty sure it’s C
User Stenerson
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