Should I use a question mark when the second independent clause of my sentence is not a question?

Is it appropriate to use a question mark at the end of a compound sentence where the first independent clause is a question but the second is a statement? For example:

Do you want attribution for that quotation, because I'm definitely sharing it and want to know if I should give you credit?

or

Do you want attribution for that quotation, because I'm definitely sharing it and want to know if I should give you credit.

I suppose this could work, but it's a little niche, as the second clause might not always be appropriate for a parenthetical.

Do you want attribution for that quotation (because I'm definitely sharing it and want to know if I should give you credit)?

Because the second statement doesn't ask a question, I would consider writing it as a separate sentence:

Do you want attribution for that quotation? Because I'm definitely sharing it, and I want to know if I should give you credit.

It's clearer that way.