Answer:
D) All of the above
Explanation:
This because, Letters and emails are written ways to communicate with co-workers, friends, & family, brochures and advertisements are ways to communicate your idea or business production to other people to see and buy, powerpoints are ways to show a visual of what your product is and present it in a professional manner., and memos are written messages to help you remember something that's you would later present or use during business.
