Manufacturers would prefer to produce in a country with a trade , because it signals a greater opportunity to export products to more markets.

Surplus

Explanation:

Manufacturers would prefer to produce in a country with a trade surplus, because it signals a greater opportunity to export products to more markets. Trade surplus is a very positive and healthy sign for and country where its exports becomes greater than its imports which means that country is making huge progress. It enhances economic growth and creates the chances of employment. It also helps to make the country's currency relatively stronger as compared to other countries. It means that there is very high demand of that country's products across the border. For any manufacturer, it creates a very strong opportunity if they produce their products in such a country because it will indirectly enhance their products value as well, consequently, they can increase their sales and profits.

The correct answer is the option C: the working-age population to the number of dependents.

Explanation:

On one hand, the dependancy ratio is the name given, in the field of economics, to the term that refer to an age-population ratio that are and are not in the labor force. Moreover, this type of ratio focuses in measuring the pressure that the productive population has over the nonproductive population.

On the other hand, the inverse dependay ratio measures the amount of labor force that has to be provided regarding one dependent person. Therefore that it is understandable that the inverse dependency ratio is defined as the reatio of the working-age population to the number of dependents.