To create a CSV file with quiz questions, you may want to use a question generator.
Use a bb question generator. They seem to work well.
The quiz generators cut down on the OKs and SUBMITs, most say they work for Bb not Brightspace, but I’ve found they also work for later versions, too.
Follow the Exact syntax for your chosen generator(some work better than others: try CSI’s). It will require you to use your Word quiz .doc, mark( *) the correct answer, cut&paste, and submit the generator. Please refer to the generator rules