Ace the CAPM Adventure 2025 – Your Project Management Power-Up!

Paralingual communication involves vocal effects or tone of voice. This involves using vocal cues such as intonation, pitch, and volume to convey meaning and express emotions in spoken communication. Options A, B, and D are incorrect because they do not involve the use of vocal effects or tone of voice. Text-based messaging and written communication do not involve the use of one's vocal cords, while sign language does not involve the use of spoken language. Therefore, these options are not considered forms of paralingual communication. Option C is the most accurate as it involves the use of one's voice in communication.