pls answer fr and dont do it for the points pls I GIVE EXTRA POINTS AND BRAINLIEST IF REAL!

Lucy had 4 4/5 cups of flour and used 2 1/2 cups to make banana bread. How many cups of flour does lucy have left?

A: 6 4/10

B: 2 3/10

C: 2 5/10

D: 6 3/10

Please explain the answer also.