The Information Below Compares the Final Exam Grades for 2

The information below compares the final exam grades for 2 biology classes:
$\begin{array}{|l|l|}\hline \text { Class 1 } & \text { Class } 2 \\\hline & \\\bar{X} & \bar{X} \\\\=80.2 & =81.3 \\\hline \mathrm{s}=12.1 & \mathrm{s}=6.7 \\\hline \mathrm{N}=25 & \mathrm{~N}=23 \\\hline\end{array}$
What may we conclude? Class 1

A) is more homogeneous.
B) is more heterogeneous.
C) was a better class.
D) had no grade higher than a 90.