Consider a U.S. economy consisting of 4 sectors: (1) Textiles, (2) Apparel, (3) Farms, and (4) Wholesale Trade. The following (IA)1 matrix was computed from an input-output table for this economy: (IA)1=1.21970.01340.08750.00500.17231.0700.01230.00070.000601.20470.00340.00380.00110.00221.0413.Suppose we wanted know the production levels needed to meet an increase in demand of $1,000 million units of Textiles and $1,200 million units of Wholesale Trade. Which of the following vectors models this change in demand? Question 7Answer a. Dc=1,000001,200 b. Dc=1,0001,20000 c. Dc=1,0001,00000 d. Dc=1,000001,200