The country of Auslan produces two goods, shirts and ties. In 2021, the prices of shirts and ties were $50 and $30 respectively. In 2022, prices increased to $55 and $40. The quantities produced remained the same in each year at, 100 and 200. What was nominal GDP in 2022? a. 11,000 b. 13,000 c. 13,500 d. 12,500