Final answer:
The correct way to indent the first line of a paragraph other than using the Tab key is to use a hanging indent. In Microsoft Word, this is done by selecting 'Hanging' from the Special options in the Indentation section of the Paragraph menu.
Step-by-step explanation:
To indent the first line of a paragraph instead of pressing the Tab key, you can use a feature known as a hanging indent. To do this in Microsoft Word, for example, you would begin each entry at the left margin and then indent subsequent lines by one-half inch.
This is typically done by highlighting the paragraph(s) you want to apply the indent to, and then selecting "Hanging" from the Special options in the Indentation section of the Paragraph menu. The answer to the question is "d. Hanging indent." It's important to note that neither the Shift key nor the Spacebar is a proper or efficient method to indent the first line of a paragraph, as they do not provide consistent indentation.