What is the function of a monitoring and alerting tool?

What is the function of a monitoring and alerting tool?
A . Focus on examining the usage of resources by customers and service providers and provide notification to optimize and manage workloads
B . Control charges for cloud usage by optimizing cloud resource utilization
C . Automate tasks and IT processes and manage the IT environment
D . Enable people to work closely together on a common project, in real time, by making communication among them easier

Answer: A