A country's foreign policy is foremost driven by

Step 1: Analyze the question The question asks what mainly drives (motivates) a country's foreign policy. The key word is "foremost", meaning the primary or number one factor.

Step 2: Explain the concept Foreign policy is the set of strategies and decisions a country adopts in dealing with other countries and international organisations. Every state, whether Nigeria, the USA or China, designs its foreign policy to achieve its national interest. National interest includes:

• Security and territorial integrity
• Economic prosperity
• Protection of citizens at home and abroad
• Promotion of the country's values and international prestige

Step 3: Evaluate the options

• A. Economy: The economy is an important part of national interest, but it is only one component. It is not the overarching driver.
• B. Location: Geography can influence foreign policy (for example, Nigeria's relations with its neighbours), but it is a factor, not the main driver.
• C. Natural resources: Resources can shape a country's priorities, but they are also just one element.
• D. National interest: This is the overarching goal behind every foreign policy decision. Economy, security, location and resources are all pursued or considered in service of the national interest.

Step 4: Answer The correct option is D. national interest.

Tip: In Government, whenever you see "foremost", "main objective" or "primary determinant" of foreign policy, think national interest. Other items like economy, geography and resources are factors that influence policy, while national interest is the goal that drives it.