A contraction is the process of something getting smaller and/or tighter.
Example of this is when a pregnant women goes into labor. Her uterine muscles contract at intervals (such as five minutes apart) until she has the baby!
I would say C. because if you are asked to write 10 pages then you aren't going to talk about what you ate last night, but a broad topic that can fill that many pages. That's how I do it in class anyways...
