Brian, a 200 kg strongman competitor, is competing in the truck pull event in a strongman competition. Brian wears a harness attached to a cable, and the cable is attached to a truck and trailer. Brian is also using his hands to pull on a rope that is wrapped around a pulley attached to the truck. The pulley is 1.5 meters above the ground. If Brian pulls with a force of 1200 N at an angle of 30 degrees above the horizontal, what is the torque about the pulley due to Brian's pull? (Assume the pulley has no friction and the cable does not stretch.)
A) 1800 Nm
B) 1500 Nm
C) 1200 Nm
D) 900 Nm