What is a characteristic of a core area?
i. economic strength
ii. increasing poverty rates
iii. isolation from other countries
iv. struggling infrastructure

a. i only
b. iii only
c. i, ii, and iii
d. ii, iii, and iv
e. i, ii, iii, and iv

Economic strength is a characteristic of a core area

Option A

Explanation:

Economic Strength is the core area characteristic for any field whether its country or business. Economic Strength is condition with sufficient resources that allow to make and enforce economic decisions , it can be a allocation of resources or apportioning of good/services.

It can be even said that it is the ability to improve the standard of living of country, business or individual which increases the freedom to make decisions which are beneficial and reduces outside force of freedom.

i would say b. research typically uses a variety of sources