Study the reaction. CH4 + 2O2 → CO2 + 2H2O

If 4.0 moles of methane (CH4) and 8.0 moles of oxygen (O2) enter this reaction, how many moles of carbon dioxide (CO2) and water (H2O) will be created at the end of the reaction?

4 moles of carbon dioxide and 8 moles of water
4 moles of carbon dioxide and 4 moles of water
8 moles of carbon dioxide and 4 moles of water
1 mole of carbon dioxide and 4 moles of water