Multiple choice blocks should not allow the next block to be visible until an answer is submitted.

In order to make the multiple choice/selection quiz more interactive, the next block should remain hidden. This would allow more creative responses to the submitted answer, in addition to the response within the multiple choice/selection block itself.

For instance, after an answer is submitted, a statement B type block could state a relevant fact that was covered earlier. Note: Making the statement visible (as is would be now) could give away the answer.

This feature would provide a nice way to review each lesson. The premise off course here is, that we in fact require learners to submit answers in order to 'continue' - and yes that is true.