The answer is : A : <em>to link ideas and emphasize main points.</em>
Repetition is a rethorical device used to <em>add emphasis</em> in writing and speech, by repeating the same words or phrases to make an idea clearer. Another purpose is to <em>draw the attention of the readers to a certain idea</em> or something that the writers or speakers choose as significant, important enough to be repeated.
Whether you are raised on morals or the belief of a well being using good manner is key to th proper function of life as we know it. Manners are a kay part of life that if used more frequently could change the world for the better.
