Which set lists channels that can be used for business communication?

• A. Email, phone, letters, reporting, and social media.
• B. Email and phone only.
• C. Email, phone, face-to-face, letters, instant messaging, and video calls.
• D. Letters and email only.

Answer: (C)

In business, communications happen through a mix of channels that suit different needs, from immediacy and formality to personal connection. The best set includes email, phone, face-to-face, letters, instant messaging, and video calls because it covers both written and spoken forms and includes both synchronous (live) and asynchronous (delayed) options. Email and letters provide formal, traceable records; phone allows quick, direct contact; face-to-face meetings handle complex or sensitive topics with full interaction; instant messaging supports fast, informal exchanges; and video calls enable remote meetings with nonverbal cues. Other options miss key channels—some omit important methods like face-to-face or video calls, while others limit the range too narrowly (for example, using only two channels or including an unusual item that isn’t a standard communication method). This broader mix supports effective communication across different situations.