When Using Alibaba Cloud SLB, You Can Set Different Weights

When using Alibaba Cloud SLB, you can set different weights for backend ECS instances. The higher the weight of a backend ECS instance, the more load will be assigned to it. If an SLB instance has 5 ECS instances in the backend server pool, all of which are healthy. Among these 5 ECS instances, the weight of ecs_inst1 is set to 100. Which of the following statements is correct?

A) We do not know the weight settings of the remaining 4 ECS instances, so we cannot tell what would happen.
B) 100% of loads will be assigned to ecs_inst1, and the rest 4 ECS instances will stay idle.
C) Based on SLB's working mechanism, approximately 20% of loads will be assigned to ecs_inst1.
D) Based on request level parameters of external requests, all requests with a request level parameter of 100 will be transferred to ecs_inst1.