How is coal extracted from mountaintop removal mines?

I may be wrong but I believe they blow up the mountaintop then drill it out.
Sorry if it doesn't help.

Coal can be extracted from the mountain top removal mines in two ways, such as-

Open cast mining- Here various mining techniques are used to excavate at the surface, in order to extract the coal from it.Underground mining- Here, underground excavation is done to obtain the coal from the subsurface. It is a very costly mining method and risky at the same time, compared to the open cast mining.

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.

The correct answer is b) false