B is correct.
See Similar Questions below if you need further info.
What did Han emperors do to keep the economy stable?
A.stopped merchants from selling goods along the Silk Road
B.bought grain, stored it, and resold it during times of low harvest **
C.introduced the first standardized coins
D.refused to allow monopolies in any industries
3 answers
I am not at all sure:
https://hunterhandynasty.weebly.com/economy.html
https://hunterhandynasty.weebly.com/economy.html
Thank you both for your help.