Answer:
D)reducing its need to be self-sufficient,
Explanation:
Specialisation by a country's economy means that it produces only the specialised goods & even export it, import the other goods.
It decreases opportunity costs, decreases cost of voluntary exchanges. Higher level of specialisation implies there is increased labor force division.
However, it reduces need of country to be self sufficient. As, it can gainfully trade its specialised goods for other goods (in which other economy specialises).
