The document that is used to communicate within the organization is called

The correct answer is (B) Memo.

• Logical Principle: A Memorandum (Memo) is an internal document designed for communication within an organization between employees, departments, or management, focusing on policies, procedures, or official directives.
• Step-by-step Deduction: 1. Identify the purpose: Communication within an organization. 2. Evaluate options: Letters (A) are typically external correspondence. Emails (C) are a medium, not a specific document type defining internal communication. Telex (D) is an obsolete telecommunication system. 3. Conclusion: A 'Memo' is explicitly defined in office administration as a brief, internal document meant for intra-organizational circulation.
• Verification: The term 'Memo' is short for Memorandum, which stems from the Latin 'memorandum est' meaning 'that which is to be remembered'. It is the standard official format for inter-office communication, unlike formal letters used for external stakeholders.