An unknown compound contains 43.38% Na, 11.33% C, and 45.29% O.
What is the empircal and molecular formula of the compound if its molar mass is 105.99g/mol?

a.Empirical- Na3CO2; Molecular- Na3CO2
b.EmpirIcal- Na2CO3; Molecular- Na4CO3
c.Empirical- Na2CO3; Molecular- Na4CO6
d.Empirical- Na2CO3; Molecular- Na2CO3