Figure 12 - Relating Grades and Hours Studied

Figure 1.2 - Relating grades and hours studied
-Based on Figure 1.2,if a student wants to achieve a grade-point average of 2.0,he or she should study:

A) An average of 40 hours per week.
B) An average of 30 hours per week.
C) An average of 20 hours per week.
D) An average of 10 hours per week.