A business runs services in a virtual private cloud (VPC) using the CIDR block 10.5.0.0/22. End users remark that they a

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A business runs services in a virtual private cloud (VPC) using the CIDR block 10.5.0.0/22. End users remark that they are unable to supply additional resources due to the fact that some of the VPC's subnets have run out of IP addresses.

What is the proper way for a network engineer to handle this issue?

A. Add 10.5.2.0/23 as a second CIDR block to the VPC. Create a new subnet with a new CIDR block, and provision new resources in the new subnet.
B. Add 10.5.4.0/21 as a second CIDR block to the VPC. Assign a second network from this CIDR block to the existing subnets that have run out of IP addresses.
C. Add 10.5.4.0/22 as a second CIDR block to the VPC. Assign a second network from this CIDR block to the existing subnets that have run out of IP addresses.
D. Add 10.5.4.0/22 as a second CIDR block to the VPC. Create a new subnet with a new CIDR block, and provision new resources in the new subnet.