The user experience of questions could by improved by more closely mimicing technology used in the actual exam, namely highlighting in the question stem and improved answer-strike through options (currently), strike through is not available after an answer is selected and when returning to review a question previously striked questions no longer show the strike through).
Thanks for this suggestion! We'll include this in our list of potential future improvements. Can you tell us more about how this would improve your experience?
For example, if you highlighted content in the question stem, would you expect the highlighting to remain if you were served the question again in another session? Would you expect the highlighting to remain if you revisited the answered question again? Tell us more!