Pero, ¿cuál es tu pregunta?
The market system is also known as capitalism, while the command system is also known as communism. The market system is owned by private ownership, businessman and companies, hence it has capitalism concept. The command system is owned by a community or public.
Hence it can be said that
The market system is also known as <u>capitalism</u>, while the command system is also known as <u>communism</u>.
Both but fixed goes first so a is correct
