Consider each of the following items. should it be counted as part of u. s. gdp? if so, in which component of gdp—consumption, investment, government purchases, or net exports—does it belong? (assume products are manufactured in the u. s., unless otherwise indicated.) part of u. s. gdp (yes or no.) if yes, which component? a. lumber, produced and sold in the u. s. to a housing developer to build a house. yes or no: if yes, which component of gdp? b. a boeing passenger jet, produced in washington state and sold to singapore airlines. yes or no: if yes, which component of gdp? c. a share of ibm stock, sold to a person saving for retirement. yes or no: if yes, which component of gdp?