Keep in mind that most of these forms are for multi-use, not just one class, i.e. Family, Skilled Worker, Investor, etc.
In the Spousal category of the Family Class there are three kinds that are eligible. Spouse, Common-law Partner and Conjugal Partner. For Q

check just common-law. For 8b) I don't think it really matters but I would check NO because you have already chosen Common-law in the question above. In any event, you get to explain this stuff as you get further into the questionnaire.