In traditional economic system, which type of goods is most often produced?
a) military supplies
b) agriculture products
c) electronics and computers
d) heavy industrial machinery

Traditional economic system' is such a complex phrase! It really needs to be narrowed down some. Economic activity began with bartering, long before there was money.
Heavy industrial machinery belongs to a manufacturing economy. We live in a so called post-industrial age.
As of now I would say the most frequently produced goods are derived from petroleum. This includes the wide diversity of plastics, the dyes that go into them, the nylon clothing and parts oil produces, medical equipment, and, of course, computers. Petroleum is also used to produce fertilizer for crops, and the fuel to harvest and ship them with. Source(s): Modern times