Huawei OceanStor 9000 adopts Erasure code technology to protect the data. If a game point has six nodes, and customers hope, in the situation of a striped three discs broken, can still ensure data recoverability, which level of redundancy protection may be employed? (Multiple choice)
A . 4+3:1
B . 6+3
C . 4+2
D . 12+3:1
Answer: AD