Answer: Please post your questions in legible English with proper spelling :)
Incomplete question. However, here's the clearly written/completed question;
The dates listed in the works cited page indicate:
a. important years in Mandela’s life.
eventful years in the author’s life.
b. years in which the sources were published.
c. years in which the student conducted research.
Answer:
<u>b. years in which the sources were published.</u>
<u>Explanation:</u>
Remember, this is a <em><u>biography</u></em> written by someone to explain the life story of another, in this case Nelson Mandela.
Therefore, inorder for the information to be verifiable, it is quite important that the years in which the sources of the information that led to the published work on Mandela's life be mentioned.
The same thing that happened in the 19th century, "The Great Stink". The name is real and it describes an event from the past which would repeat if they started throwing waste again. The river would become so polluted that disease and contagion would begin to spread. In the 19th century, it was cholera. Now, nobody knows.
Maybe, what do you need help with?