Correct option is (c) Condenser ejectors
The explanation: The non condensable gas content varies from 0.2 – 0.4 percent depending upon the particular well and its age. The non condensable themselves are mostly CO2 plus varying amount of methane CH4, hydrogen H2, nitrogen, ammonia and hydrogen sulfide. Besides finding way with the fluid into the plant equipment the non condensable partly escape to atmosphere via condenser ejectors.