How is the space bar generally used in typing?

The space bar is primarily used to create a space between words while typing. This function is essential for ensuring that text is legible and properly formatted. When typing, words need to be separate from one another so that they can be easily read, and the space bar fulfills this requirement by inserting a blank space where needed.

The other options don't reflect the primary function of the space bar. Punctuation is added using other keys, capitalizing letters involves the use of the Shift key, and selecting text typically requires the use of mouse actions or keyboard shortcuts. Therefore, the answer highlighting the role of the space bar in creating spaces accurately describes its most common use in typing.