The answer to this question is C.
The words that represent verbs that would be useful in describing the purpose for a text are the following ones: Inform and define.
Cambridge dictionary defines the verbs "to inform" as "to tell someone about particular facts" and "to define" as "to say what the meaning of something is". When you are about to describe the purpose of a text, you are to inform the reader what you want to say and why you are saying it. You are giving meaning to your piece of writing.
PCM: Pulse code modulation. It is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, digital telephony and compact discs. The amplitude of this signal is sampled regularly at uniform intervals.
PAM: Pulse amplitude modulation. It is a form of signal modulation where the message information is encoded in the amplitude of a series of signal pulses.
In literature, the term tone refers to the writer's attitude or feelings about the subject matter as well as towards the audience. Such tone is created by authors through the use of literary elements, such as diction( defined as word choice), syntax ( or the grammatical arrangement of words), imagery ( referred to the vivid appeals to the senses); details (related with facts that are either included or omitted) and figurative language (which refers to the comparison with apparently unrelated things.
In the particular segment.. “He was tall, gaunt, with a pale skin and sunken eyes the color of a kingfisher's wing, neither blue nor green...” details and figurative languages seem to be used by the author as literary elements to express his/her attitude towards Kenny, which could be categorized as indifferent
