Tori’s mathematics test had 75 problems: 10 arithmetic, 30 algebra, and 35 geometry problems. Although she answered 70 \% of the arithmetic, 40 \% of the algebra, and 60 \% of the geometry problems correctly, she did not pass the test because she got less than 60 \% of the problems right. How many more questions would she have needed to answer correctly to earn a 60 \% passing grade?
Answer Choices
A. 1
B. 5
C. 7
D. 9
E. 11