The answer to this is:
A. is a measurement of how well a forecast is predicting actual values.
I have seen this type of tracking signal before, they use this for news forecast to track severe weather such as tornadoes, severe weather, hot weather, winter storms and even hurricanes. This helps the people know what the weather will be like in the next few days or so, so they can get prepared for any storms or hot weather.
it's a interesting technology they have.
Hope this helped :)
Have a great day
Explanation:
In general, when a program runs in text-based environment like command line interface, the program is used for determining the order in which things happen.
As the program runs, the user will not have any choice and he or she can enter the required data.
If the user enters the data in required format then, he/she can get the result or output in desired format.
