Answer:
c. is the military
Explanation:
In the state there are 3 political axis that a country need to be strong. One is the political area, independent of the kind of government that a country decide to have, need to be strong.
The other area is the economic area, if currency is strong in comparison with other countries that will give stability to the country, in it inner and outside economy.
The third area is the protection as a country, the nationalism that every nation needs. Normally, since the military is quite independent of the government, it has their own government and laws, this are normally is strong in a country.
Hope this is useful.