Complex sentence: It achieved an average rating of 9.8 based on 45 reviews on Rotten Tomatoes, and holds a 99 out of 100 based on 22 reviews on the aggregate review website Metacritic, making it the highest rated season of any show on the site.
Split into simpler sentences: It achieved an average rating of 9.8 based on 45 reviews on Rotten Tomatoes. It has a rating of 99 out of 100 based on 22 reviews on the aggregate review website Metacritic, making it the highest rated season of any show on the site.