I'm i think its b because it makes more sense, i'm pretty sure it's b
All of them are used but I don't think a handwritten signature is vital
Answer:
Explanation: Writing to Sources offers you flexible resources for writing instruction and makes fact-finding fun for students! It provides practice with the three modes of writing: argument or opinion, explanatory or informative, and narrative. Additionally, it connects students to the Common Core State Standards for Writing.
A diagram of the water cycle is a visul aid so therefore the answer is A