Final answer:
Scale typically refers to measurement units like inches to miles, whereas scale of analysis refers to the level of detail or perspective when studying a phenomenon, such as demographic trends at various geographic levels.
Step-by-step explanation:
The correct answer to the question is (A): Scale refers to measurement units, while scale of analysis involves the level of detail in studying a phenomenon. To provide an example, a unit scale might relate 1 inch on a map to 100 miles in the real world. This is a simple scale indicating measurement units. On the other hand, when looking at demographic trends, the scale of analysis could refer to examining the trends at various levels such as local, regional, national, or global. Each level grants a different perspective and level of detail on the population shifts.