Concept:Deregulation means removing government controls and allowing market forces to determine prices and distribution.
Explanation:In Nigeria, deregulating the petroleum sector removes price controls and subsidies.
This allows market competition to operate freely.
Competition encourages efficiency in pricing and distribution of petroleum products.
It does not automatically stop fuel importation.
It does not end foreign firms' dominance.
It also does not set production quotas, because quotas are government controls.
Therefore, the main outcome is improved efficiency in pricing and distribution.
Answer:A. efficiency in pricing and distribution of the products.