John, an NRA, is employed by Fisher, Inc., a foreign corporation. In November, John spends $10$ days in the United States performing consulting services for Fisher$$s U$.$S$.$ branch. He earns $$5,000$ per month. A month includes $20$ workdays.

Group of answer choices

John has $$2,500$ U$.$S$.-$source income, which is exempt from U$.$S$.$ taxation, because he is in the United States for $90$ days or less.

John has no U$.$S$.-$source income under the commercial traveler exception.

John has $$2,500$ U$.$S$.-$source income, which is exempt from U$.$S$.$ taxation, because the amount paid to him is less than $$3,000.$

John has $$2,500$ U$.$S$.-$source income, because his foreign employer has a U$.$S$.$ branch.