Answer:
C. industrial oil-drilling equipment
Step-by-step explanation:
Capital investment here refers to the acquisition of permanent fixed assets like property, plant and equipment by Nigeria.
Nigeria is a country that is blessed with crude oil as one of its resources and this is the major source of wealth of the nation.
With this in mind, an industrial oil-drilling equipment is going to be a huge capital investment for the country and would be of huge benefits to the nation