In 1980, colleges enrolled 12,086,800 students. In 2000, colleges enrolled 15.312,300 students. About how many more students in millions, enrolled in 2000 than in 1990?
A2.8 million
B3.0 million
C3.2 million
D4.5 million
A2.8 million
B3.0 million
C3.2 million
D4.5 million