Question: What does `$()` mean in jQuery?

1. It is an alias to the main core method of jQuery itself?the same as writing jQuery().
2. It is a utility function that selects the first element from the document.
3. It is a shorter way to write `document.getElementById()`.
4. It is a utility function that selects the last element from the document.

Answer: The correct answer of the above question is Option A:It is an alias to the main core method of jQuery itself?the same as writing jQuery().