ead the passage from chapter 5 of Animal Farm.

After surveying the ground, Snowball declared that this was just the place for a windmill, which could be made to operate a dynamo and supply the farm with electrical power. This would light the stalls and warm them in winter, and would also run a circular saw, a chaff-cutter, a mangel-slicer, and an electric milking machine.

What does the windmill symbolize in the story?

Marxism
technology
revolution
capitalism