The best verified answer is A, B, and C . Huawei ECS documentation explicitly supports upgrading ECS specifications and adjusting capacity-related resources, which makes D the reasonable and appropriate response when access performance is slow. Increasing compute or network capacity is aligned with normal cloud performance tuning practice.

By contrast, A is not a standard Huawei performance-optimization recommendation. Huawei OBS guidance focuses more on choosing proper regions, APIs, and storage access patterns than on “reducing buckets and storing data centrally” as a latency fix. Centralizing data can even create concentration rather than optimization.

B is also inappropriate as a first-line solution because replacing ECS with BMS changes the compute model but does not directly target the ECS-to-OBS access path. C is similarly inappropriate because CCE is a Kubernetes/container orchestration service, not a direct remedy for object-storage access latency in an ECS+OBS media scenario. Huawei positions CCE for container lifecycle management, not as a general replacement for ECS to solve this kind of OBS delay.

So the inappropriate measures are A, B, and C .