Answer:
a. verbal content; emotional tone
Step-by-step explanation:
During communication or speaking, discussions need to be coded not only for verbal content but also for emotional tone.
Emotional tone is also important during the discussion it expresses feelings and it connects more with the person. An emotional tone is more true than the verbal content. The response of the other person also depends on the tone more than verbal content.
Hence, the correct answer is "a. verbal content; emotional tone".