Why did civil service positions go to people who were not related to other people of status?

A. So that officials working in the government were qualified for their job
B. So that there would be differences in the political positions
C. So that nobody in power liked each other
D. So that officials could be well-traveled.

the Test answers are

A
B,E
D
C,D,E
B
A
C
Development of pictographs
Legalism, Caused Unrest
A
Qin dynasty: Great Wall of China
Han dynasty: Wheelbarrow
Zhou dynasty: Crossbow
Shang dynasty: writing system
B
A
D
C
B
I cant help you with the last three sorry
Goodluck

are yall sure YW is correct i don't wanna get anything wrong

A. So that officials working in the government were qualified for their job

is this correct?

what is it

look at my nametag

He is the only reason I got like 60 percent on the test is becuase of those last 3 I was too dumb to answer correcty