I personally believe that unless I directly go out of my way to view advertisements for Nintendo products (such as those posted on their official Youtube channel or those seen in compliations for older ones), I don't often see Mario commercials on TV, Youtube Ads, etc. I also don't see the games advertised in print media unless it's Black Friday or close to Christmas (unless you count ones dedicated to gaming like Nintendo Power.)
Maybe this happens more in Kid-Centric magazines/channels, but when I viewed them in the past, they usually had adverts for toys, movie releases, cereal, the official website, junk-food, books, sweepstakes, and other stuff. When Video Games were advertised, it was either the system itself, games that were unrelated to Mario, or a generic advertisement that might've had a clip of Mario squeezed in.
So from my personal experience, I'd have to go with Option 6. While some of the ads are very memorable, the fact that I encountered most of them well after their initial run shows how little Nintendo products get advertised these days compared to what it might've looked like in earlier times.
P. S. I did see a lot more adverts leading up to the release of the Mario movie last year (including when I saw it in theaters) but this is talking from a more general viewpoint.