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.
The excerpt is being told by the narrator if thats what your asking<span />
One evening, me and my friend Jack were playing outside. We decided a friendly game of football would be fun. We were just tossing and throwing the ball to each other, like normal boys would do.
All of a sudden, Jack started crying. I went up to him in desperation, as I noticed that he had broken his arm! He ran into the neighbor's car, and he hit his arm so hard on the side mirror, that it broke! We had to admit him into the hospital!
After a long time in the emergency room, Jack was free to go to his house. This had to be the scariest moment for me. I'm going to be taking a little break from football. I hope this never happens again...
These are the correct options, in my opinion. A. <span>The ending is inspiring in contrast to the beginning. The beginning is calm and toned down. The speaker is sorry to hear the young Negro underrate his own racial identity, but there is no solution yet. On the other hand, the conclusion is exulted, lively, and defiant. It offers an inspiring solution, calling upon Negro artists to finally climb that mountain and get free of their inherent prejudices about themselves. D. </span><span>The ending revisits a quote that was used in the beginning. This quote is from the young Negro poet: </span><span>"I want to be a poet--not a Negro poet," and it represents the wish of the middle-class Negroes to blend into American standardized society, denying their own identity.</span>
