The correct answer is option 4: getting poorer countries closer.

Inclusion strategy refers to a set of policies and actions aimed at promoting equal access and opportunities for all members of society, regardless of their social or economic background. It aims to reduce inequalities and create a more inclusive and equitable society.

Option 1 states that inclusion strategy does not focus on the reduction of inequality. This is incorrect, as reducing inequality is a key objective of inclusion strategies. These strategies seek to address the disparities and barriers that exist between different groups in society and ensure that everyone has equal opportunities.

Option 2 suggests that inclusion strategy does not focus on the reduction of poverty. This is also incorrect, as poverty reduction is another important goal of inclusion strategies. By ensuring that everyone has access to basic services, education, healthcare, and employment opportunities, inclusion strategies aim to alleviate poverty and improve the livelihoods of marginalized groups.

Option 3 mentions diversifying livelihood for tribal populations. This is actually one of the key focuses of inclusion strategies. They aim to promote the economic empowerment and self-sufficiency of marginalized and vulnerable groups, such as tribal populations, by diversifying their livelihood options and providing them with the necessary support and resources.

Therefore, the correct answer remains option 4.