Which of the following is not a unit of torque? O pound-foot 0 kilogram-newton Newton-meter O pound-inch

Answer: Kilogram - newton is wrong unit for Torque

Idem pound-inch is also wrong unit for Torque

Explanation: As it is well known the torque is defined as:

Τorque = F x R

so its UNITS are Newton*meter (SI)

or in the Imperial System is often use Pound-foot