The correct option among all the options given in the question is option "C".
The mixture has to be in proper percentage to start and continue the process of combustion.
Step-by-step explanation:
A combustor could be a element or space of a turbine, ramjet, or scramjet engine wherever combustion takes place. it's additionally called a burner, combustion chamber or flame holder. During a turbine engine, the combustor or combustion chamber is fed air mass air by the compression system.