It was easier for me to understand why Answer choice C) is incorrect by noting that just because the rules say most large nurseries sell PRIMARILY to commercial growers doesn't mean that most large nurseries can't also sell SECONDARILY to noncommercial growers. Thus, if Johnson was a noncommercial grower and Wallys sold to him anyway, it has no bearing on the probability that Wally’s is a large nursery.

Why not print the stim and answers outside of the video so we have a chance to tackle them on our own? The video just jumps straight to the correct answer choice without even showing the other choices. The quiz-explanation format is more effective imo.

#feedback it would be helpful if you print the answer choices where you discuss them in the text. Otherwise where are we supposed to see them? We'd have to fast forward and rewind the video because the video doesn't display all the answer choices simultaneously.