Which option describes how to apply a left indent to a selected paragraph? Press Ctrl+M on your keyboard to insert a left indent. Drag the left indent marker on the ruler to create a left indent. In the Paragraph dialogue box, insert a positive value in the box labeled Left. All the above options are correct.

Answer: All the above options are correct.

When applying a left indent to a selected paragraph all of the options are different ways to apply it. Some of the options have a little more accuracy than the others, but they all give the same result in the end. This then makes all of the descriptions of how to make a left indent correct.