I think it's B, too. Geez, I haven't worked with syllables in ages.
Answer:
I CAN HELP YOU WHEN YOU SHOW ME THE PASSAGE OR STORY OR NOVEL.
Explanation:
What helped scholars determine that the demotic language was related to the Egyptian language?
Based on details in The Riddle of the Rosetta Stone, what event helped scholars determine that the demotic language was related to the Egyptian language? Examples of the demotic language previously appear on rolls of papyrus. The scholars call it demotic, meaning "of the people."
Answer: The answer choice that I would best conclude as correct would be letter 
Explanation: Hope this helps! Have a wonderful day! <3