Final answer:
The correct answer is D) Negative control. It helps determine the baseline level of activity or signal in the absence of the target being tested. This ensures the accuracy and reliability of the assay results.
Step-by-step explanation:
The correct answer is D) Negative control. In a molecular assay, a negative control is used to ensure that a test does not produce a false positive result.
It helps determine the baseline level of activity or signal in the absence of the target being tested. a negative control should always be negative, meaning it should not show any activity or signal related to the test.
This helps ensure the accuracy and reliability of the assay results.