Answer: A. Numbering of sources
MLA or Modern Language Association is one of the most frequently used citation style in research. In MLA style, there has to be a consistent font size, the entries must be arrange alphabetically and double spacing is required. Numbering of sources is not necessary.
Hoi!
"As a result" indicates a cause-and-effect sentence. This sentence discusses the price of shipping goods, which lessened due to better ways of transportation. The price lessening is a result of of new transportation methods, so "As a result" is the correct answer.
It's either B or D. I'm leaning towards B but you choose which is better.
That .....................
