Final answer:
The question relates to the components of face-to-face communication comprising verbal, vocal, and nonverbal aspects. The correct distribution is 7% verbal, 38% vocal, and 55% nonverbal, as noted from Professor Albert Mehrabian's research.
Step-by-step explanation:
The student's question appears to relate to the percentages associated with the different components of face-to-face communication. These percentages are often derived from the research of Professor Albert Mehrabian, who concluded that in face-to-face interactions, communication is 7% verbal (words), 38% vocal (tone of voice), and 55% nonverbal (body language). Therefore, the correct answer to this question is option a. 7%; 38%; 55%, referring to the verbal, vocal, and nonverbal components respectively.