What are the three steps for creating a map overlay?

The correct answer focuses on the essential processes involved in creating a map overlay for military operations. Orienting material is the first step, which ensures that the map is correctly aligned to match the terrain features and the operational environment. This alignment is crucial for accurate navigation and mission planning.

The second step, plotting and symbolizing, involves marking key features and resources on the map to effectively represent different elements such as troop positions, terrain types, and obstacles. This visual representation allows for quick comprehension and coordination among units.

Lastly, adding required marginal information is vital as it includes important details like scale, legend, and grid references, which enhance the usability of the map overlay. This information is necessary for effective communication and coordination during operations.

In contrast, the other choices do not directly relate to the specific steps required for creating a map overlay, as they focus on broader operational elements or logistical considerations rather than the precise mapping techniques.