Which new technology had the most profound effect on U.S. society in the1980s?
A. The fuel-injection pump
B. The SST
C. The challenge space shuttle.
D. the DVD player
E. The personal computer.

Hint:We will discuss the states in the United States of America. There are fifty states in America. In early periods, several European countries started the colonism. Initially, the United States of America was a colony of British. It got independence after American Revolution. Several revolutions were found to raise the economy of the country.

Complete answer:
Let us discuss the fuel-injection pump. It is used to deliver fuel to the diesel engine. Diesel engine is a four stroke engine. Fuel is injected into the engine with the help of a fuel injection pump. Carbonator is used to mix fuel with air.
 Let us discuss SST. SST is the Supersonic Travel Airlines. Some Airlines were started with supersonic travel initially which later closed due to safety. It was in a Boeing commercial airplane. It was cancelled in 1971 due to high manufacturing cost, sound of supersonic speed, takeoff and landing difficulties.
We know about the challenge space shuttle. It was launched by The United States in 1986. It exploded after seven minutes of launch. It was a manned space mission which resulted in the death of seven astronauts.
We know that DVD 's is used to play DVD’S which was invented in 1996 in Japan. DVD's are used to play movies or play any recorded information.
We know that personal computers were invented in 1980 in America which is the technology developed by the United States. It brought immeasurable changes in the world.

Hence, the correct answer is option (E).

Note:A personal computer is a multipurpose computer which is designed at low size with all capabilities. It changed the world. Several software and developments were made after the introduction of personal computers.