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.
Answer:
sleepers
Explanation:
Difference-
"Her sisters are the loudest sleepers in the house."
"Her sisters are the loudest in the house."
The have a "agressive" relationship.
I think the correct answer is "The president lives at 1600 Pennsylvania Avenue, NW, Washington, DC 20500" because in writing the address in the sentence it requires comma each part of it and in between the sate and zip code there is never a comma.