Which of the Read and Write Strategies of Huawei Oceanstor

Which of the read and write strategies of Huawei Oceanstor V3 storage system is correct?

A) Read and write strategies include permanent, default, recycling.
B) Recycling strategy is suitable for business scenarios that require high performance and small amount of data.
C) Select out the recycling strategy when the data or write data is the lowest priority.
D) Resident strategy is suitable for large read and write data, and read-only scenes.