Calculate the Average Atomic Mass of Lithium Using the Following

Calculate the average atomic mass of lithium using the following data: $\begin{array}{|l|l|l|}\hline \text { Isotope } & \text { Abundance } & \text { Mass } \\\hline ^{6} \mathrm{Li} & 7.5 \% & 6.0151~ \mathrm{amu} \\\hline ^7 \mathrm{Li} & 92.5 \% & 7.0160 ~\mathrm{aum} \\\hline\end{array}$

A) 6.51 amu
B) 6.02 amu
C) 6.94 amu
D) 7.02 amu
E) 6.50 amu