Answer: Technology
Explanation:
Technology is the component that is composed of methods, process, skill, ability and knowledge.It is used in various fields like business, medical ,internet , computing etc. for betterment of operation and carrying out task.
According to the question, technology played a major role for development of economy in U.S as technology lifts the production and making of goods and services much better .It provide developmental environment by facilitating business by cheaper rates for production, quality operation, better services,improved working etc.