Locate-select records with both ColA & ColC filled

Hello forum,

I am currently editing a road name index worksheet to use as a reference index in a book. This table has 3 columns as follows..

road name 1	neighbourhood name 1	page number1
road name 2	neighbourhood name 2	page number2
-	-	page number3

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this has 6ooo records in it....I am trying to locate-select the records in Column C that do not have a Column A cell filled in (or more easily has both colA & colB filled cell). I am doing that in order to continue with a sort by column A to have the final look of the table.

would a sort by column A do the trick I am looking for in order to discard unwanted data afterwards?would the sort be affected by empty cells in Column B?

regards