What are the guidelines for proper placement of the warning devices, flares, triangles, and flares during an emergency situation if you are on a curve or hill?
a) Place warning devices at the top of the hill or curve.
b) Place warning devices 25 feet before the hill or curve and 100 feet after.
c) Place warning devices 50 feet before the hill or curve and 200 feet after.
d) Place warning devices 100 feet before the hill or curve and 300 feet after.