A couturier uses fabric to produce suits. When calculating GDP, we include ________, because when we add the value of the fabric to the value of the suit to calculate GDP, the result is ________. only the value of the fabric used to produce the suit; double counting both the value of the suit sold by the fashion house and the value of the fabric used to produce the suit; double counting the value of the suit sold by the fashion house, the value of the fabric used to produce the suit, and the salary paid to the coutourier; less than the true value of the economy's output only the value of the suit sold by the fashion house; double counting both the value of the suit sold by the fashion house and the value of the fabric used to produce the suit; the true value of the economy's output