The correct option is D Continental storm
Orographic storm: A rain or snow event that results from, or is significantly enhanced by, lifting of an air mass over a mountain barrier.
Air mass storm, also called an "ordinary" thunderstorm, is a thunderstorm that is generally weak and usually not severe. The lifting source, which is a crucial factor in thunderstorm development, is usually the result of uneven heating of the surface, though they can be induced by weather fronts and other low-level boundaries associated with wind convergence.
Frontal thunderstorms occur along the boundaries of the weather fronts (e.g. cold front).