01 Visual cues are unavailable in a phone conversation yet how can the speaker's emotion be understood?
Answer and explanation
Correct answer: B. Through tone, pace, pauses, and voice intensity
Explanation: The governing concept is verbal communication supported by paralinguistic features. Although a caller cannot see facial expressions or gestures, tone, speaking rate, pauses, stress, and voice intensity can reveal excitement, anger, uncertainty, or calmness. Thus option B is correct. Message length and call duration may provide context, but they do not reliably express emotion, and the phone model has no meaningful role.