Answer:



Step-by-step explanation:
To find a factor of a number, you have to figure out what two numbers make up that specific number.
In this case we have the number 35, so now we have to find two numbers that make up 35.
A. 6 and 7 do not make 35. Therefore it is wrong
B. 5 and 9 do not make up 35. Therefore it is also wrong.
C. All pairs in this answer make 35. Therefore it is correct.
D. 5 and 6 do not make 35. Therefore it is wrong.