It is called the guide words,and it is the last pages in the dictionary!
Have a nice day!
If i can help you any other way , pm me so as to not waste points!
It's got to be C because none of the others relate to collaboration, but I'd say if you were unsure about this answer then the only other sensible one could be B, but I'd go with C.
Time
Time goes by fast when you not paying attention and having fun
But goes slow when your ready to leave
She liked punching the boring teachers