For each of the following, indicate whether the transaction described represents an increase in US value-added in the 2019, and when it represents an increase in US Aggregate Spending, and if so which part.

 (a) The purchase in 2019, by Boeing, of steel, which was manufactured in Gary, Indiana, for use in producing 777x airplanes.

 (b) The purchase in 2019, by Warren Buffett, of Wells Fargo, a U.S. Bank, which he will then control and operate to produce financial services. 

(c) The purchase in 2019, by a fishing company in Seattle, a boat constructed in 2019 by Fishermen's Finest, a boat construction company in Kirkland, WA, for use in catching fish in 2020.