uizCo manufactures and sells its goods in the U.S. with the exception of a few exports that it manufactures in the U.S. and sells to foreign customers. It has no foreign plants, branches, subsidiaries, or other operations in the foreign countries where it exports its goods. How will the income from the sale of the exports be sourced? Group of answer choices 100% U.S. source 100% foreign source Some mix of U.S. and foreign source