Why might there be an increase in the number of opium farms in southeast asia? 1.) declining prices for existing crops 2.) soaring prices for opium 3.) purchasing power of their currency declining 4.) all of the above

There might be an increase in the number of opium farms in Southeast Asia because the prices of crops are declining. Many farmers only means of income is farming and with the decline in prices, it makes them to turn to other mean of income. Another reason would be opium prices are high and many make a living off of selling them. The purchasing power of their currency is declining as well. So the answer would be All of the above. 

Ibelieve the answer is c. map projections.hope my answer has you : )

Answerland;