What is the difference between throughput and capacity, as performance metrics?

A.
Throughput is limited by queuing delays, whereas capacity is not.

B.
Capacity is the maximum throughput that a system can maintain to meet a specified service
level.

C.
Throughput is measured in transactions per second; capacity is a measure of the maximum
memory and disk that can be added to a system.

D.
Capacity is the inverse of throughput.