4.1 Quiz - tuples and sample images
4.2 Quiz options
4.3 Quiz - answer verification
4.3 Quiz - answer verification
4.4 Quiz - next button
5. Remove Tuple object
4.4 Quiz - next button
4.4 Quiz - next button
- prevent two same questions in a row
4.4 Quiz - next button
6. Fix error: elements repetition in answers