Clarky
I assume yellow would not have been you choice of colour.
Multi choice Question
Its Yellow because .....
a) It matches the colour of the banana it will tow
b) It matches the colour of my boating jacket
c) The other half insited yellow or no boat
d) Daughter said yellow
e) We put a list of colours in a hat and yellow was drawn
f) I saw a yellow boat once and liked it