I would say 7.1 or D. Though, if we are rounding, the answer might be 6.7, or C.
In the theory we are rounding to the nearest whole number;
A: 5.9, would be closer to 6 and 6 does not multiply into 35
B: 6.2, would be six, and would not multiple to 35
C: 6.7, would round to 7 and 7 fits into the multiple of 35
D: 7.1, Would round to 7, and fits into multiple of 35.
I hope this helps!
