The ancient Egyptians were the first known people to develop .
A. wooden boats
B. military armor
C. a 365-day calendar
D. a system of writing

C : The Egyptians were the first to create a 365-day calender.

Do you have more info about it ? i doubt this is the answer because i don't have all the information but if trouble was brewing in a clinic maybe it was an argument as to which clinic was better or smth of that nature