Question 1 of 8. Which taxpayer(s) should file Schedule C (Form 1040) to report business actlvity? Albert. He and his brother own an unincorporated business together. They are both material participants. The business is a limited liability company under the laws of the state in which business is conducted. Brianna and her spouse, Chris. They are married and file a joint return. They are the only owners of a business in which they each materially participate. The business does not have limited liability status under state law. Brianna and Chris elect not to be treated as a partnership. hailing platfermm Paul and his sister Clara. They are the only owners of an unincorporated business in which they each materially participate. The business does not have limited liability status under state law. Mark for follow up Question 2 of 8