What razor position is used to make left sideburns and shave the left side?

The correct answer is reverse backhand because this razor position is specifically used to make left sideburns and shave the left side. When working on the left side of a client's face, the reverse backhand position allows for more control and precision, ensuring a clean and accurate cut. The other options (cutthroat grip, overhand position, and sideburn stance) are not specifically tailored for working on the left side and may not provide the same level of accuracy required for creating and shaping left sideburns.