At a private school, the student to teacher ratio is 6 to 1. If the number of teachers were to increase by 50%, while the number of students remains the same, what would be the new student to teacher ratio?
A. 3:1
B. 4:1
C. 5:1
D. 9:1
E. Cannot be determined
A. 3:1
B. 4:1
C. 5:1
D. 9:1
E. Cannot be determined