As our world experiences a deep economic downturn, what is the best plan of action to combat global recession?

The best plan to combat the global recession would be the one that puts emphasis on the increased fluidity of an all-inclusive international trade and commerce with diluted restrictions and negligible barriers.

Explanation:

In order to combat a global recession, it would be primarily necessary to motivate the populations across the world to help rejuvenate the markets by engaging in buying and selling activities. This would happen if the markets offer varied choices in prices and quality of the products available for trade. In order to be able to offer this choice, a certain level of fluidity in the supply of commodities from all over the world would be necessary.

Dall of the above all of the choices make sense