Concept:Agriculture is the main employer of labour in many West African economies.
Explanation:About 60% of the active labour force in West Africa is engaged in agriculture.
This includes farming, fishing, and livestock keeping, which provide livelihoods for the majority of the population.
The commodity market, arable land, and service sector are not mainly occupied by agriculture at that percentage.
Therefore, the correct option is the one that refers to the working population.
Answer:C. active labour force in West Africa.