Which Characteristic of Control Samples Is Different Than That of a Standard

Multiple Choice

Which characteristic of control samples is different than that of a standard?

A) They are used once after every five patient samples are processed.
B) Controls are used before each patient sample is processed.
C) The results from a patient sample and a control sample should be different.
D) They have unknown results when the test is performed.
E) They are used only after equipment has been serviced or replaced.