The amount of oxygen in the reactants is 4 atoms. In the products, the oxygen is distributed to water (H2O) and Oz gas
Which coefficients would be placed in front of water and oxygen?

2 in front of water and 2 in front of oxygen

1 in front of water and 2 in front of oxygen

1 in front of water and 1 in front of oxygen

2 in front of water and 1 in front of oxygen