Given below are two statements.

Statement I: Maltose has two $\mathrm{\alpha }-\mathrm{D}-\mathrm{glucose}$ units linked at ${\mathrm{C}}_1$ and ${\mathrm{C}}_4$ and is a reducing sugar.

Statement II: Maltose has two monosaccharides: $\mathrm{\alpha }$-$\mathrm{D}$-glucose and $\mathrm{\beta }$-$\mathrm{D}$-glucose linked at ${\mathrm{C}}_1$ and ${\mathrm{C}}_6$ and it is a non-reducing sugar.

In the light of the above statements, choose the correct answer from the options Question: given below.