The correct answer should be A. A historian writes an extensive text on the important contributions of southeast Asian countries
Asian countries' history is often based on periods that are bound by the rule of various dynasties or by political engagements of the country.
I know Columbus was one... Sorry, that's all I know.
Sources are used in a paper to show what ideas inspired you and whose theories you would be using and you cite the sources in order to avoid plagiarism. If you don't have sources, your paper will not be valid and you could get accused of plagiarism. The more sources you use the better but you should keep in mind that they need to be important for the paper and used with a purpose and not just to increase the number of sources.
Answer:
The common housefly is a flying insect that is found throughout the world. The genus and species of the housefly is Musca domestica.
Anatomy: Like all insects, the housefly has a body divided into three parts (head, thorax, and abdomen), a hard exoskeleton, and six jointed legs. Flies also have a pair of transparent wings. The Housefly can taste using its its feet and with its mouthparts.
It is A and trust me i know its right