Question 9 1 pts Research costs: Should be charged to expense when incurred. Are usually small in dollar amount. Include periodic alternatives to existing products. Are intangible assets. Question 10 1 pts All of the following expenditures are classified as research and development except: Salaries of research staff designing a new product. Acquisition of R & D equipment for use on a current project only Engineering costs incurred to advance a new product to full production stage. Costs of marketing research to promote a new product. OO