Which term best describes russias transition to a market economy

The term that best describes Russia’s transition to a market economy is difficult. The thrid option is correct.

Several years ago, many countries made transition in their economic policies.

Russia initially followed a centrally planned economic policies. Communism has played a crucial role in the past era of Russia. After 1990, Russia sough to  shift its economy from a centrally planned one to a market based one. However, it came across major difficulties in reaching the transition.

secretly cooperate with one another.

i think they would live in caves or natural tunnels