a. B and C are rational numbers, and the positions on the number axis are shown in the figure below, then the result of | a | + | B | + | a + B | + | B-C | reduction is () -----------1---a---0-------1---b---c----▷

a. B and C are rational numbers, and the positions on the number axis are shown in the figure below, then the result of | a | + | B | + | a + B | + | B-C | reduction is () -----------1---a---0-------1---b---c----▷

b+c