A timeline, to understand the progress of events.
The right answer is "A. The clergy "
You should be referring to the quote from "The Canterbury Tales" where the word gold is used to represent the clergy in all its purity that leaves it in such a high standard that nothing can reach it, just as gold can not be attained by rust.
I believe that you should just check your spelling , capitalize some I's and the word January .
You should also give more detail about the Sunday event.
When you say the word conclusion I begin to think about a short paragraph / summary , this means you should bring the reader in , draw my attention to your mint idea.
I really hope that I'm helping you , :)
The central idea is the same as the main idea. Most of the time, the main idea is mentioned in the Title. Without reading the essay, I do not know what the central/main idea is.