The word "Since"

Hi @Shirnel, There isn’t logic to diagram here. We are told that parents who wish to provide a strong foundation for the musical ability of their children should provide them with a good musical education. Since (or, if it helps to see it as a premise better, think “because” instead of “since”) formal instruction is OFTEN part of a good musical education, ~therefore~ parents who wish to provide this strong foundation NEED to ensure that their children receive formal instruction. The flaw is that just because something is OFTEN part of a good musical education, doesn’t mean that it’s NECESSARY to a good musical education. You could potentially still have a good musical education without formal instruction. That’s how we get to answer choice D. Hope this helps! Feel free to follow up if you have anymore questions!