Amap with a scale of 1: 24,000 means that a. one unit on the map is equal to 24,000 units on the ground b. one unit ground is equal to 24,000 units on the map c. the contour interval is 24,000 feet d. the contour interval changes every 24,000 feet

A. One unit on the map is equal to 24,000 units on the ground

Explanation:

A representative fraction shows us the maps according to scale and by comparing the map distance to the ground distance it depicts the units that are available on the ground as to that of the maps which are two-dimensional aspects of the earth landscape. The R.F can be measured in Kilometers and inches and yard and miles and also referred a s an absolute scale.  And it is highlighted by the shading of the scale bars, and it's an essential element of the map in the form of a legend.  Depicting a large scale and a small scale map.