What was the main reason why European countries formed the Common Market, and later the European Union? A | to have an alliance against the Soviet Union

B | to open Europe's elections to all countries' citizens

C | to form a united European military

D | to trade with each other more easily

D

Explanation:

the union's purpose is to promote peace, establish a unified economic and monetary system, promote inclusion and combat discrimination, break down barriers to trade and borders, encourage technological and scientific developments, champion environmental protection, and, among others, promote goals like a competitive global market and social progress.

D

Explanation:

The common market was designed to eliminate internal trade barriers between the member countries, with the goal of economically benefitting all the member countries.

a. competition between france and england for land and power

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.