which is a balanced single replacement reaction?

Question

a 3 Mg + 2 H2O → 3 MgO + 2 H2
b 2 Mg + 3 H2O → 2 MgO + 3 H2
c 2 Mg + H2O → 2 MgO + H2
d Mg + 2 H2O → 2 MgO + H2
e Mg + H2O → MgO + H2

Answer 1

The balanced single replacement reaction is:

c) 2 Mg + H2O → 2 MgO + H2