Identify each cost as being classified as a selling, general &administrative (SG&A) or a product cost: Group of answer choices Salary of the vice president of manufacturing. Selling, General & Administrative Commissions paid to sales staff. Selling, General & Administrative Salaries of administrative secretaries. Selling, General & Administrative Salary of the vice president of marketing. Selling, General & Administrative Salary of middle managers in manufacturing plant. Selling, General & Administrative Salary of the company president. Selling, General & Administrative Wages of production workers. [ Choose ] Salaries of engineers and maintenance crew. [ Choose ] Salary of the chief financial officer. [ Choose ]