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JavaScript Build an Interactive Website Introduction to jQuery Using jQuery to Select Elements

Rephrase question?

It seems as though this question should be rephrased since it is rather ambiguous: On the next line, use jQuery to select all list items (li) in an unordered list (ul) with the class of 'nav'? With the way it is now it's hard to tell whether you are saying the li elements or the ul elements have the class of "nav". Illustrating this with a few extra commas for clarity, you can see an alternate reading: On the next line, use jQuery to select all list items (li), in an unordered list (ul), with the class of 'nav'?

I'd recommend rephrasing this sentence to avoid any ambiguity. Also, that question mark at the end should probably just be a period.