Anyone who’s Chinese and have watch the Empresses in the Palace Chinese drama? If yes, can you help me I’ve got a question abt it

How does it change your understanding of the laws to read them as a primary source rather than just a summary of laws?

What task did the surveyors do? a. they studied the landscape to determine the most direct route for building a road. b. they designed treadmills that lifted blocks of stone to where they were needed. c. they dug trenches and filled them with sand, concrete, and large blocks to form a road.

Aprimary source: a- may be biased b- is never biased c- cannot possibly have bias d- none of the above