The Molal concentration of 0.559 M is (Mwt=331.23 g/mol& density of solution =1.157g/ml) is

The Molal concentration of 0.559 M is (Mwt=331.23 g/mol& density of solution =1.157g/ml) is:
a- 1.882
b- 0.882
c- 0.559
d- 0.575