Joe produces $150 worth of cotton, which he sells to Kem who uses it to produce cloth, which he sells to Zara for $500. Zara uses the cloth to produce shirts, which she sells for $900. The value added by Zara is: a. $400 b. $350 d. $900 c. $500The following are national income account data for a hypothetical economy in billions of dollars: Government purchases ($960); personal consumption expenditures ($4,950); imports ($130); exports ($170); gross investment ($680). What is the value of GDP in this economy? b. $6,630 a. $6,463 c. $8,537 d. $5,700