How important is citations for writing and what is their purpose?

They are very important.

Explanation:

Citations provide a source from where the author got that specific bit of information, it also dispels plagiarism. Without citations we would never be able to properly keep track of where one bit of information came from because everyone would be using it all the time without giving proper credit to the source. And without the source we can't accurately fact check anything the author that used the quote or information has said. There purpose is to stop plagiarism and provide authority on fact from a distinguished source.

The answer is b

Explanation:

just did it on plato