This quote says: "For which the Indians send back merchandise, which at Rome is sold for a hundred times as much as it costs".
Let's analyze this quote. It shows the significance of Roman trade with India. The Romans could purchase goods from India at relatively low prices and then maximize their profit by selling the goods at huge margins. The products from India were valuable and could be sold at extremely high prices.
Based on this analysis, the best answer choice is <u>C. Goods that could be purchased cheaply from India were very valuable in Rome</u>
A confounding variable is a variable that you didn’t account for. It is when an experimenter cannot tell the difference between the effects of different factors on a variable. This method is used to influence the outcome of experimental design.