Without george westinghouse’s invention, what aspect of life most likely would be impacted?
a) affordability of automobiles
b) efficient travel by airplane
c) communication by telephone
d) delivery of electricity
e) use of gas masks for safety.

Correct answer choice is :

George Westinghouse, American inventor, and manufacturer who was principally accountable for the selection of alternating current for electric power transmission in the United States. Simulated the railway air brake and was an explorer of the electrical industry, getting his first franchise at the age of 19.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.