The force of friction = (weight) x (coefficient of friction)
Skier's weight = (mass) x (gravity) = (76.5) x (9.8) = 749.7 N
Force of friction = (749.7) x (coefficient of friction) = 60.0 N
Coefficient of friction = 60 / 749.7 = 0.08 (rounded)
Choice-'A' is the closest choice offered.