I believe the answer is a yard. Here's Why:
An inch is very small so that is most likely the NOT the answer. A foot is still very small for a skate board because if you hold a ruler up to your feet, you would understand that it is NOT the answer. A mile is the most ridiculous answer for this problem because that would be the world's largest skateboard. However, a yard is three feet, which might be a little big but it is a much better choice then the rest of them.
inch, foot, yard, mile
In order of magnitude: inch, foot, yard and mile
Mile, kilometer, meter, yard, foot, inch, centimeter.
A mile is the biggest, than yard, foot and then inch. There are 12 inches in a foot, 3 feet in a yard, and 1,760 yards in a mile (or 5,280 feet in a mile). Hope that helped! :)
From shortest to longest: Centimeter Inch Foot Yard Meter Hectometer Mile
Inch, Foot, Yard, Mile
12 inches=1 foot 3 feet= 1 yard 1 yard= 1,760miles
an inch a mile a yard a foot
A furlong, chain, fathom, yard, foot, mile, inch are all fractions of a mile.
Inch, Foot, Yard, Mile.
Centimeter (cm), inch (in), foot (ft), yard (yd), meter (m), kilometer (km), mile (mi).
(millimeter --) Centimeter -- inch -- foot -- yard -- meter -- (furlong -- ) kilometer ( -- mile )