Which of the following will copy the plot from one device to another?

The correct answer is: A. dev.copy

The dev.copy command is used to copy a plot from one device to another. The syntax for the command is:

dev.copy <source> <destination>

where <source> is the name of the device that contains the plot to be copied, and <destination> is the name of the device to which the plot should be copied.

For example, to copy a plot from the device plot1 to the device plot2, you would use the following command:

dev.copy plot1 plot2

The dev.copypdf command is used to copy a plot from one device to another in PDF format. The syntax for the command is:

dev.copypdf <source> <destination>

where <source> is the name of the device that contains the plot to be copied, and <destination> is the name of the file to which the plot should be copied.

For example, to copy a plot from the device plot1 to the file plot1.pdf, you would use the following command:

dev.copypdf plot1