What do the “Each orientation in the document” and “Each page size in the document” options in Word for Mac’s print dialog do?

I’m using Microsoft Word (Version 16.93 (25011212)) on macOS (Version 14.5 (23F79)), and I noticed these options in the print dialog under the “Print Dialog” section:

• Each orientation in the document
• Each page size in the document
  

I have a document that contains a mix of portrait and landscape pages, as well as pages with different sizes (e.g., A4 and A5).

Could someone explain what exactly these options do when enabled or disabled?