Answer: Efficiency
Step-by-step explanation:
Efficiency is the ability to achieved a given objectives in the least time, cost and efforts. The activities of a firm in producing outputs or service s involves the use of capital or cost, time and efforts, all efforts geared towards production or service using this variables to produce optimum results with least input is efficiency.
It's not flexibility, because flexibility is the ability to be adaptable to changes, nor it's a currency control cost which is a control on cost associated with trading in foreign exchange nor protectionism which is the activities of the goverments in protect indigenous firm from foreign companies domination through the use of import duties etc.