Respuesta :

The correct answer should be A. A historian writes an extensice text on the important contributions of southeast Asian contries


Asian countries' history is often based on periods that are bound by the rule of various dynasties or by political engagements of the country. 

Hopes this helps

Answer:

A historian studies each of the major world powers between the years 100 BCE and 100 CE

Explanation:

These two points are following the lines based off of category period.