What are the four main methods of writing?

The selection of memorandums, letters, information letters, and email as the correct answer highlights the formal and professional aspects of writing that are essential in many contexts, particularly in military and organizational settings.

Memorandums serve as a standardized way to communicate information within an organization, often addressing policies or directives. Letters provide a formal means of communication, typically used for external correspondence. Information letters are usually written to convey updates or instructions concisely, helping to streamline message delivery in an organized manner. Lastly, email has become an integral part of communication, allowing for rapid and efficient exchanges of information.

This combination reflects the types of formal writing that are crucial in professional environments, particularly where clarity and operational effectiveness are paramount, making them highly relevant in WOCS and military communications.