#1 is debatable. There is evidence that the earliest "writing" in what is now China were pictographs (as they were in Egypt and other places). A direct connection to modern writing is unproved, though.
http://www.interestingchinese.com/chinese-written-language/characters-history-development.html
So, I don't know if your program/teacher thinks it's true or not. #2 and #3 are true. #4 is false, as you note. You're right about them.
Chinese characters originally were pictographs, but the language expanded into thousands of complex and stylized characters (1). One of the oldest Chinese books yet discovered is the I Ching, a fortune-telling guide that historians believe was written around 800 BC (2). Another famous text, The Art of War, written by Sun Tzu in 300 BC, provided an in-depth analysis of military tactics, and is still revered today by many scholars and military leaders (3). Marco Polo introduced papermaking to the Chinese people during his travels across the Silk Road, forever enshrining Chinese literary works (4).
I think 2 and 3 is true and 1 and 4 is false
3 answers
1, 2, and 3 are correct while 4 is false.
1, 2, and 3 are accurate well 4 need revision