Hi JSLSAT,
Thanks for the question! I suspect that the thing that caused issues here is the restatement that the test makers use in answer choice (C). It's a bit unexpected, which makes this problem feel hard. Let's look at it more closely.
First, your diagrams are correct (assuming that the "/" equals a negative). I diagrammed the first one in the contrapositive form of what you have, so mine came out positive but it has the same meaning:
Problems solved
understand
experience
So, to solve a problem, you need experience. It's interesting, because I feel that the second and third sentences are basically equivalent in meaning, but that the second sentence throws in some different ways of stating the same type of idea. They both drive at the the same belief: if you have a problem in a field, then you need experience in that field in order to solve it.
When you get to answer choice (C), the test makers do a smart thing: they flip the idea around and force you to make some connections, but essentially (C) is just a restatement of the concept we just discussed. Here's what it looks like:
- Answer choice (C): Creative solutions in a field always come from people with experience in that field.
Creative solutions in a field = problems solved
people with experience in that field = experience
Or, in conditional terms: Problems solved experience (which is just the inference from the last sentence of the stimulus)
I've been asked a few times by students why this question seems so hard when they are doing it during the test, but then seems really straightforward after they discuss the explanation. I think it occurs because the stimulus focuses more on discussing
people ("outsiders...insiders...by people...no one") and less on fields, but the correct answer choice seems to focus more on
fields ("in a field...in that field.") and less on people. But, each includes the other idea, and, of course, how do people get experience? By working in the field. So, the test makers emphasize different aspects in the stimulus and answer choice, and when you are working through a problem at a high rate of speed that difference can seem to be enough to make (C) wrong. But it's not because the the two ideas are so closely connected.
Please let me know if that helps. Thanks!