Final answer:
The statement that 'tours must be saved after being created and named' is not true when creating a 3D map, as most software saves changes automatically or prompts to save upon exit, but it's always best practice to save work periodically.
Step-by-step explanation:
When creating a 3D map, the statement that tours must be saved after being created and named is not true. Typically, when you create a tour in most 3D mapping software, the tour will save your scenes and changes automatically or prompt you to save changes if you attempt to close the software. This is to prevent data loss and ensure that your work is not lost. However, it is always a good practice to save your work periodically. A tour is indeed a series of scenes that visualize data, with each scene being a designed and filtered layout of the data.
Moreover, 3D map tools generally open in their own window in order to provide the user with a more immersive and focused environment for data visualization. Such an environment allows for detailed topographical maps to be created and displayed on a computer monitor. When creating a 3D map, each scene is a designed and filtered layout of the data, which means that option C is not true. A tour is a series of scenes that visualize data, and these tours must be saved after being created and named. Additionally, the 3D map opens in its own window, which is different from the other options provided.