What are some social achievements of tang dynasty?

#1 China became the largest nation in the world.

#2 The first comprehensive criminal code in China was created.

#3 The imperial examination became the major path to office.

#4 Chinese Poetry reached its pinnacle.

#5 Literature flourished.

Explanation:

Brainlist if you want :D, Hope this helped

i beleive a. is the only possible answer

b: to eliminate competition from other farmers