The contribution of petroleum to the economy of Nigerian is most prominent in the area of

Step 1: Analyze the question The question asks where petroleum contributes most prominently to Nigeria's economy. We need to pick the area where oil has the biggest, most visible impact.

Step 2: Explain the concept Nigeria is a mono-product economy that depends heavily on crude oil. The key facts are:

• Petroleum accounts for roughly 80-90% of foreign exchange earnings.
• It provides about 50-70% of government revenue, mainly through royalties, petroleum profit tax, and sales of crude oil.
• Its share of GDP is much smaller (about 5-10%), and it employs relatively few people because the industry is capital-intensive.

Step 3: Evaluate the options

• A. Revenue generation: Oil is the main source of government revenue and foreign exchange. This is its most prominent contribution.
• B. Infrastructural development: Oil revenue can fund infrastructure, but this is an indirect use of the money. Poor infrastructure in many areas shows it is not the most prominent contribution.
• C. Fuel provision: Nigeria produces crude but has long depended on imported refined products because its refineries have underperformed. This is not its main contribution.
• D. Employment generation: The oil sector is capital-intensive and employs few people compared with agriculture. This is a weak contribution.

Step 4: Answer

Tip: When you see "most prominent" or "major contribution" for Nigerian petroleum, think revenue and foreign exchange earnings. Remember that oil is capital-intensive, so employment is never its strongest contribution.