refers to the allocation or releasing of resources of the same type. A. service agent B. cloud service C. horizontal scaling D. cloud-based IT resource

correct option is C. horizontal scaling

Explanation:

correct answer is horizontal scaling because in the horizontal scaling we adding the computer into the resources pool and in horizontal scaling it is easy to add more computer system in existing pool

but in vertical scaling,  due to limited capacity we adding  the CPU and  RAM in the existing computer system and

and this horizontal scaling is related with the cloud computing

so correct option is C. horizontal scaling