Answer:
C.how to tell whether the test was accurate
Explanation:
This is because, after the test, Safiya's brother should be able to check if the test carried out was accurate and not wrong as directed.
This could be done through series of validation technique rather than assuming that the test carried out was correct.
Whats blink…………………………………?
Answer: True
Claims is the statement that gives the answer or conclusion to a question or problem.