Help, please The enrollment at High School R has been increasing by 20 students per year. Currently, High School R has 200 students attending. High School T currently has 400 students, but its enrollment is decreasing in size by an average of 30 students per year. If the two schools continue their current enrollment trends over the next few years, how many years will it take the schools to have the same enrollment?

A.) 4 years
B.) 5 years
C.) 10 years
D.) 20 years