Use the Figure on the Below to Answer the Next

Multiple Choice

Use the figure on the below to answer the next problem. A mass m = 0.5 kg is hung from a pulley with moment of inertia I = 0.20kg.m² and radius R = 10cm. There is friction in the pulley. The mass is dropped from rest, and after 2s it traveled 4m.
-What is the torque due to friction?

A) 0.5 N.m
B) 0.9 N.m
C) 2.9 N.m
D) 3.9 N.m
E) 4.5 N.m