The correct answer is: A. ENIAC
The ENIAC (Electronic Numerical Integrator and Computer) was the first general-purpose electronic computer. It was built at the University of Pennsylvania’s Moore School of Electrical Engineering and was completed in 1946. The ENIAC was used to calculate ballistics tables for the U.S. Army during World War II. It was also used to study nuclear fission and weather forecasting.
The Mark I was an electromechanical computer built by IBM in 1944. It was used to calculate ballistics tables for the U.S. Navy during World War II. The Mark I was not a general-purpose computer, but it was the first computer to use punched cards.
The Analytic Engine was a mechanical computer designed by Charles Babbage in the 1830s. The Analytic Engine was never built, but it is considered to be the first computer.
The UNIVAC-I was the first commercial computer. It was built by Remington Rand in 1951. The UNIVAC-I was used for a variety of purposes, including census tabulation, business data processing, and scientific research.
E. None of the above is not the correct answer.