Final answer:
The maximum flame temperature for natural gas is option C) 4000-4500 °F. Natural gas, which consists mainly of methane, releases energy in the form of heat and light when it undergoes combustion.
Step-by-step explanation:
The maximum flame temperature for natural gas is option C) 4000-4500 °F. Natural gas, which consists mainly of methane, is commonly used as a fuel for heating and cooking. When methane undergoes combustion, it releases energy in the form of heat and light. The flame temperature depends on several factors such as the chemical composition of the gas and the amount of oxygen present, but typically ranges between 4000 and 4500 °F for natural gas.