By going to the person on the bottom and there should be a tab
The ENIAC was invented by J. Presper Eckert and John Mauchly at the University of Pennsylvania and began construction in 1943 and was not completed untill 1946. It occupied about 1,800 square feet and used about 18,000 vacuum tubes, weighing almost 50 tons.
C. Thinksmart - thinksmart only sells products and softwares of their own. Thinksmart is a online selling company that sells moslty softwares on their domain. Think smart is not a popular cloud suite or an online office suite. So the answer to your question is C.
The correct answer is an Alloy.