C is your answer because a in 24 hours doesn't mean that thats how it is all the time thats just a 1 time reference in 5 days is really just w hat happens in a week which the weather man can tell you but 5 years thats evidence that can be proven not every day but on most days of the year
The right answer is C — The creation of the United Nations — Thanks for using Brainly, have a great day!