Question

Pat is listing the parts of a computer. Which is the best option to use when formatting the list?

Answer 1

This question is absurdly vague... In what way do you want the list formatted? Are you talking about presenting the list in an application or a web page?
If you mean a web page, with HTML, then the best option would be to use the <ul> or <ol> elements, where <ul> gives you an unordered list and <ol> gives you an ordered list. An example of an unordered list with a medium-sized heading is as follows:
<h2>Computer Parts</h2>
<ul>
<li>CPU</li>
<li>Memory</li>
<li>Motherboard</li>
<li>Storage</li>
</ul>
The closing </li> tags are optional in HTML, but mandatory in XHTML, so I kept them there for good measure.