What was the total number of UNIVAC-I sold eventually and by which company?

The correct answer is C. 48, Remington Rand.

The UNIVAC I was the first commercial computer, and was sold by Remington Rand. A total of 48 UNIVAC I computers were sold, the first one being delivered to the United States Census Bureau in 1951. The UNIVAC I was used for a variety of applications, including census data processing, weather forecasting, and scientific research.

Option A is incorrect because 30 UNIVAC I computers were not sold. Option B is incorrect because 40 UNIVAC I computers were not sold by International Business Machines (IBM). Option D is incorrect because 40 UNIVAC I computers were not sold by International Computer Ltd. (ICL). Option E is incorrect because the total number of UNIVAC I computers sold was 48, not none.