Lower cost to allow for more money for research and development is an example of how which type of entity benefits the economy

A Stock market
B oligopoly
C Monopoly
D Bank

B oligopoly

Oligopolies are typically made up of a small number of large firms that dominate a particular industry. By lowering costs, these firms can increase their profits and have more resources available for research and development, ultimately leading to innovation and economic growth. This benefits the economy as a whole.