Runners participating in a charity event will run 2.1 km from the starting point to a water station and then run 1.75 km to the finish, as shown in the diagram below.
How much farther do runners run from the start to the water station than from the water station to the finish?
A.0.26 km
B.0.35 km
C.0.45 km
D.1.35 km