Can't find acc under export settings

Extreme noob question I guess:

I can’t see acc as an option when rendering. Under Compressed all I see is: flac, ogg and wma (on a freshly installed trial version). How do I get aac?

It is only in wavelab, not wavelab elements.

Doh! I thought it was Wavelabs (and not Wavelabs Elements) I had a trial version of…

I’m installing the right version now. Thank you for your answer, and please don’t tell anyone about this.