What was the name for the plan by which, beginning in 1969, president nixon gradually drew down the number of american troops in vietnam, saying they would be replaced by south vietnamese soldiers?

c

explanation:

disequilibrium means that either supply is greater than the demand for an available good, or that the demand for a product outstrips the available supply. it implies that the price for a is either too low creating large demand, or too high creating a large surplus of supply.