How can economic issues contribute to conflict between countries regarding resource use?

"Even though coal generates more pollution than other sources of energy, the concern is often of secondary importance to many people in developing countries living in utter poverty and lacking access to food, clean water, medical care, let alone any reliable energy source."

A) Countries with high rates of economic development typically share resources with other neighboring countries

B) Countries at different stages of economic development have different attitudes toward the use of fossil fuels

C) Economic issues such as competition for scarce resources or access to energy sources can drive conflict between countries

D) Disparities in economic power and access to resources can create tensions and lead to disputes over resource use and allocation