25% of all written text in English
I think
Explanation:
"on" (and any subsequent words) was ignored because we limit queries to 32 words.
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.
