A, B. Statement A is true because the solid line representing 1990 reaches the same height above “TV/music” as the dotted line representing 2000 reaches above “computer.” Statement B is true because the students in 2000 spent 40% of their leisure time on the computer, twice as much as the 20% they spent with friends. Statement C is false because the students in 1990 spent 30% of their time with friends and a total of about 45% of their time on television, computers, and music. Because 45% is not three times as large as 30%, it cannot be true that they spent 6 hours with friends and 18 hours entertaining themselves with television, computers, and music.