What Dutch Policy Resulted in Periodic Famines in Its Colony

What Dutch policy resulted in periodic famines in its colony of Indonesia?

A) Plantations were split into smaller units, thus altering the farm economy and disrupting production.
B) Farmers were not allowed to export their crops, which diminished their ability to earn income with which to purchase food.
C) An emphasis on tropical hardwood-derived exports resulted in large-scale deforestation and erosion.
D) Farmers were coerced into producing export cash crops rather than food for themselves.