Pick many review results shows correct/incorrect answers but I don't want that

The "Show correct/incorrect responses when reviewing" option refers to the program adding a checkmark next to the correct answer during a Review. This only applies to standard graded question, not freeform ones. 

A Review will always show the Correct or Incorrect banner at the bottom of the question slides. 

• One workaround to cover it: add a "Review" layer to the question slide. On that layer, insert a shape that covers where the banner shows. 

Since your questions don't have right or wrong answers, it would be better to use Survey questions instead. 

• To get the Review and Retry options, use a Graded Results slide with the Survey questions. I suggest you set the passing score to 0, delete the Failure and Success layers, and just put everything you need on the base. 

Finally, I feel compelled to ask this: Why bother doing a quiz about Preferred Learning Styles?

• Learning Styles have been completely debunked. Here's just one article about that: https://www.worklearning.com/2010/02/12/learning-styles-reviewed-by-association-for-psychological-science-and-found-wanting/