A Gradient of .037 Implies That

A gradient of .037 implies that

A) the slope will drop by 37 meters or feet or inches for every 1000 meters or feet or inches of horizontal distance.
B) there are .037 times as many index contours as there are other contours on the map.
C) the slope is steeper than another location with a gradient of .040.
D) topographic map or shaded-relief map cannot be constructed for the area because the gradient is too small.