An experiment was performed to investigate the reaction between Zn metal and Ni2+(aq) at different concentrations. Because the Ni2+(aq) ion is green, the extent of the reaction was determined using spectrophotometric analysis. Four 20.0mL standard solutions of Ni2+(aq) were prepared by dissolving NiCl2⋅6H2O (molar mass 240g/mol) in water. The absorbance of each solution was measured; the results are shown both in the table below and in the following plot of the absorbance data.

What is the expected absorbance of a standard solution made by dissolving 0.0070mol of NiCl2⋅6H2O in water to make 100mL of solution?

A. 0.0039
B. 0.0080
C. 0.045
D. 0.45