Step 1: What is non-verbal communication?
Non-verbal communication refers to the process of conveying meaning without using words. It involves body language, facial expressions, gestures, posture, and eye contact.
Step 2: Analyzing the options.
- Option (A) "Sending a text message" involves written communication and is thus verbal, not non-verbal.
- Option (B) "Speaking loudly" involves verbal communication, not non-verbal.
- Option (C) "Maintaining eye contact" is a clear example of non-verbal communication. Eye contact conveys emotions, attentiveness, and understanding without speaking.
- Option (D) "Writing an email" is written communication, which is verbal communication.
Step 3: Conclusion.
Thus, the correct answer is (C) Maintaining eye contact.
Final Answer: Maintaining eye contact.