Which of the following is the leading industrial zone in the West African sub-region?

The leading industrial zone in the West African sub-region is the Accra-Tema industrial zone of Ghana. This area is considered the most important industrial center in the region because it is home to many large manufacturing industries, such as textiles, chemicals, food processing, and metal fabrication. The location of the Accra-Tema industrial zone is strategic because it is close to the main port of Ghana, which facilitates the importation of raw materials and exportation of finished goods. Additionally, the Ghanaian government has created policies that encourage the growth of the industrial sector in the country, such as the establishment of export processing zones, which attract foreign investment and increase the competitiveness of Ghana's industries.