Answering "No" to unscored questions will not restrict your level of advancement.
If you answer No to any scored questions in Level 1, then you will not be able to move forward to Level 2 or 3 in that section. If you only answer No to an unscored question or the No answer is an answer in the positive, then you will not be restricted from moving to levels 2 and 3 in that section.
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