What is a Type C and Type D Belgium Schengen visa?

Type C visa is a short-stay visa which allows the holder to visit Belgium for a maximum of three months for tourism, business, family visits, etc. This can be categorized into single-entry and multiple-entry. 

Whereas, Type-D is a national visa that is issued when the stay exceeds three months. This visa is a long-stay visa which is issued for different purposes like work, family reunification, digital nomad, etc. This Belgium visa may be: A single entry or a multiple entry!