Answer:
Option A, Symbols, is the right answer.
Step-by-step explanation:
A map is a small representation of the original world, therefore, various map symbols are used to represent the real facts on the map. The importance of symbols can be seen in the fact that if there is no symbol in the there will be no map. A symbol is generally used in two ways, i.e. colors and shapes. On a map of a larger area or say on a world map the colors such as blue and green represents the waterways and forested land respectively.