What best describes the tax obligations of Promoter? Promoter must withhold $300,000 on the fixed, determinable, annual, or periodic income paid to Rocker even though Rocker is engaged in a US trade or business. Promoter must withhold $150,000 on the effectively connected income earned by Rocker. Promoter does not have any withholding obligation on the fixed, determinable, annual, or periodic income paid to Rocker. All of the above. None of the above