It should be B. I haven't used semicolons in forever though so if it's not B it's D
<span>Uniforms may stifle students' self-expression, but there are many other ways to reveal one's individuality at school.</span>
Persephone is the goddess of harvest and Demeter is the goddess of corn.
I know this because I'm a geek and love the Percy Jackson series.
Does this help?