Auto sort alphabetically using basic macro

Hello,
I have scoured this and other excel forums looking for a simple macro code I can drop into my excel document to auto sort alphabetically based on a column, but have been unsuccessful. I have attached my worksheet to provide context to my question.

All I need is a macro that auto sorts all the rows alphabetically (descending) based on column C ("General Topic Categories") on sheet 1. Ideally the auto sort would occur once all the data in a row has been entered (i.e. column L), but I would be fine if it auto sorted after data was entered in column C in sheet 1. Also note that this will be be growing document, so the number of rows will always be increasing. It should be obvious but I don't want the headers sorted, so the first cell that should be alphabetized will be C2

I know this can easily be done using the sort function, but I will not the one imputing the data and the individual in charge would like it auto sorted.

Thank you in advance for your help