How replication helps to design resilient and fault-tolerant infrastructure and processes in cloud

Question:
How does replication help the design of resilient and fault-tolerant infrastructure and processes in a cloud environment?

1. It duplicates critical components or resources to provide backup alternatives
2. It monitors and controls incoming and outgoing network traffic based on predetermined security rules
3. It scales infrastructure to handle varying workloads and accommodate increased demand
4. It creates multiple copies of data or services and distributes them across different servers or locations

Answer:
D - is the correct answer