<Table> <Tr> <Td> </Td> <Td> Alpha </Td> <Td> Beta </Td> </Tr> <Tr> <Td> HLA - DM </Td> <Td> HLA - DMA </Td> <Td> HLA - DMB </Td> </Tr> <Tr> <Td> HLA - DO </Td> <Td> HLA - DOA </Td> <Td> HLA - DOB </Td> </Tr> <Tr> <Td> HLA - DP </Td> <Td> HLA - DPA1 </Td> <Td> HLA - DPB1 </Td> </Tr> <Tr> <Td> HLA - DQ </Td> <Td> HLA - DQA1, HLA - DQA2 </Td> <Td> HLA - DQB1, HLA - DQB2 </Td> </Tr> <Tr> <Td> HLA - DR </Td> <Td> HLA - DRA </Td> <Td> HLA - DRB1, HLA - DRB3, HLA - DRB4, HLA - DRB5 </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Alpha </Td> <Td> Beta </Td> </Tr> <Tr> <Td> HLA - DM </Td> <Td> HLA - DMA </Td> <Td> HLA - DMB </Td> </Tr> <Tr> <Td> HLA - DO </Td> <Td> HLA - DOA </Td> <Td> HLA - DOB </Td> </Tr>

Which of the following does not contain mhc ii on its surface