Answer:
A. The students were not chosen randomly.
Step-by-step explanation:
The answer should be (4,7)
I presume you mean how many times will 70 divide by 2 to give a whole number. 70 will divide once by two to give a whole number.
However if you did not mean this then 70 will divide infinitely many times by 2 each time getting an answer closer to 0.