Question

chinas economic expansion after the cultural revolution is a result of
new capitalist reforms.
new political reforms.
new trade reforms.
new socialist reforms.

Explanation:

After the Cultural - Revolution, China implemented reform and opening - up policies. These were new socialist reforms that aimed to develop the socialist economy by combining planned and market economies, attracting foreign investment, and promoting domestic economic development. China is a socialist country, and the reforms were based on the socialist system.

Answer:

new socialist reforms.