Option 1 -> Change in consumer's preference affects demand for coffee, not supply.
Option 2 -> Change in price of related goods primarily affects demand or supply of substitute/complementary goods.
Option 3 -> Advancement of technology directly impacts the production capacity and efficiency of coffee supply.
Option 4 -> Government policy affects supply through regulations, but is not the factor mentioned in the context.
Hence, Advancement of technology -> Technology improvements allow producers to increase production efficiency, reduce costs, and expand output capacity. This directly shifts the supply curve to the right, increasing the overall supply of coffee in the market. -> correct