The heights of 12 boys and 10 girls in a class are recorded. The average height of all 22 students in the class is 103\:cm. If the average height of the boys is 108\:cm, then the average height of the girls is
Answer Choices
A. 96\:cm
B. 97\:cm
C. 98\:cm
D. 99\:cm
E. 100\:cm