Answer:
The third and the fourth option.
[tex]3Mg+1Fe_2O_3 \\ = 3MgO + 2Fe
[tex]3Mg+1Fe_2O_3 \\ = 3MgO + 2Fe \\ [/tex]
[tex]3Mg + 3Fe_2O_3= 3MgO+6Fepl[/tex]
Explanation:
The number of products and reactants are balanced
