Which of the following crops can be referred to as Nigeria’s current export crops?

Rubber, Cocoa, Coffee, and Palm Kernel can be referred to as Nigeria's current export crops. These crops have been major foreign exchange earners for Nigeria in recent years. They are grown in different parts of the country, with cocoa and coffee mainly cultivated in the southern parts of the country, while rubber and palm kernel are predominantly grown in the central and eastern parts of Nigeria. These crops have a ready market in the international market, and their demand and prices have remained relatively stable, making them attractive for farmers and exporters alike. Other crops like groundnuts, beniseed, cotton, shear butter, sorghum, onions, sugarcane, soya beans, rice, and cashew nut are also grown in Nigeria but are not major export crops.