The correct answer is - C. a handful of wealthy farmers.
Most of the farmland in Central America is in the hands of small number of very wealthy individuals. These people own enormous amounts of land, and they use the peasants as a cheap workforce that doesn't really have any other job. Very often the owners of the farmlands treat their workers like slaves, and that is something that has to be sorted out by the governments of these countries. The production on the farmlands is usually a mixture of multiple plants and livestock, both for selling on the home market and for exporting them abroad.