What is primary production? a. Water injection b. Natural flow due to a pressurized reservoir c. Heating for viscosity reduction d. Pumping (horse head) e. Carbon dioxide flooding

Answer: Option B.

Natural flow due to pressurized reservoir.

Explanation:

Primary production is the process where natural materials is extracted from the Earth. It refers to natural way of producing things. It is also defined as the process where raw materials are extracted or gotten.

Natural flow due to pressurized reservoir shows that it was done naturally without artificial support or effort for the water to flow.