How has global cooperation changed the way societies confront common issues?
a.
although poorer countries share knowledge, it is still difficult for wealthier countries to get the resources they need.
b.
it has with environmental issues, but countries still work independently to solve social, political, and economic problems.
c.
little has changed because most common issues need to be solved by focusing on the specific needs of a population.
d.
countries can easily share information and solutions, and they often work together to solve common issues.

D.

Countries can easily share information and solutions, and they often work together to solve common issues.

Explanation:

Item D seems to me to be more correct than item B.

Although each country pays its independence to solve and legislate on social, environmental, political and economic problems, global cooperation generates facilitation to face these issues.

Economic globalization has connected nations through information technologies, facilitating the sharing of information strategies and solutions. In addition, global engagement allows nations to strategize together to solve problems that afflict everyone, such as the economic problems that are discussed and remedied together through economic blocs and international bodies.

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories