A fraction closest to 2/3

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Which choice represents the sample space ,s for this event