16. An application letter for a teaching job a. Academic writing b. Professional Writing - 17. A memorandum about the new policy in using the restroom a. Academic writing b. Professional Writing 18. A business plan for a new product a. Academic writing b. Professional Writing 19. A letter of inquiry to the network service provider a. Academic writing b. Professional Writing 20. A letter of complaint about the quality of service a. Academic writing b. Professional Writing