Answer:
The world's first television commercial aired on July 1, 1941, before the beginning of a baseball game in New York between the Brooklyn Dodgers and Philadelphia Phillies. The commercial aired on NBC's WNBT-TV, was only 10 seconds long, and was an advertisement for Bulova watches. It cost the company a total of $9.
Explanation:
Crop failures, Insurance and banking failure, drops in cotton prices, rapid speculation in land, sudden plunges in the stock market and currency and credit crises etc caused the economic panics in 1800s. The United States of America during this period was very young nation and thus these panics devastated her economy.
A. Computers.
People find the research and store it on documents and internet so it is A. Computers.
