Which of the following statements are true about the following chemical equation? CH4 + 2O2 --> CO2 + 2H2O

Question 2 options:
The mole ratio for carbon dioxide and methane is:
1 mole of CO2 / 1 mole CH4

The mole ratio for carbon dioxide and methane is:
2 mole of CO2 / 1 mole CH4

The mole ratio for carbon dioxide and methane is:
1 mole of CO2 / 4 mole CH4

The mole ratio for carbon dioxide and methane is:
2 mole of CO2 / 1 mole CH4