The correct answer is: C. resolution.
Plotter accuracy is measured in terms of repeatability and resolution. Repeatability is the ability of the plotter to reproduce the same output multiple times, while resolution is the ability of the plotter to produce fine details.
Intelligence is not a factor in plotter accuracy. The intelligence of a plotter refers to its ability to perform complex tasks, such as plotting vector graphics or 3D models. However, these tasks do not affect the plotter’s ability to reproduce output accurately.
Vertical dimension is not a factor in plotter accuracy. The vertical dimension of a plotter refers to the height of the paper that it can plot. However, this dimension does not affect the plotter’s ability to reproduce output accurately.
Buffer size is not a factor in plotter accuracy. The buffer size of a plotter refers to the amount of memory that it has available to store data before it needs to be plotted. However, this amount of memory does not affect the plotter’s ability to reproduce output accurately.
Therefore, the correct answer is: C. resolution.