Is it possible to limit TL0 to posting in one category?

Hello, I hope you don’t mind me bumping this old thread, but things have changed since then. There are now three conditions to go from TL0 to TL1: the number of posts you’ve participated in, the number of post views, and the time spent.

My question is: are these conditions combined with AND or OR?

And if it’s OR, what do we do if we don’t want post views and time spent to count toward moving from TL0 to TL1? Do we set extremely high values?