Answer:
C. paralanguage
Step-by-step explanation:
Paralanguage -
It is the non - lexical aspect of the speech, which consist of the pitch , facial expression, pace of speech, gesture, hesitation noises etc, is referred to as paralanguage, it is also known as vocalics.
The expression of paralanguage may be expressed because of some conscious reason or even done unconsciously.
Hence, it helps a lot to get a lot of information about the person, with the help of his or her speech.
Hence, from the question,
The conversation of Cora with the person from the electricity board, tells a lot about the person, the person is replying after a lot of pauses and is very distracted, thereby showcasing the example of paralanguage.