What is one drawback of using secondary sources?

Disadvantages of Secondary Data

Unit of secondary data collection-Suppose you want information on disposable income, but the data is available on gross income. The information may not be same as we require. Class Boundaries may be different when units are same. Thus the data collected earlier is of no use to you

-Jarvis

the correct statement is letter a.   according to the mandate of heaven, kings were considered godlike beings, so they could do as they .

the mandate of heaven is a chinese political and religious ideology used since ancient times to justify the rule of the king or emperor of china, that has been in place since the zhou until the dynasty system ended. it has been created to justify the zhou as the main power of the region. in order to keep harmony, the ruler has to make what he wants and what people want. he had to make good choices to satisfy the people and then they will be happy and keep you in power.