Which Proposition Is Equivalent to "Leah Runs Much Faster Than

Which proposition is equivalent to "Leah runs much faster than Michelle"?

A) Leah has been running longer than Michelle.
B) Leah is much more athletic than Michelle.
C) Michelle doesn't work at running as much as Leah.
D) Leah and Michelle don't run equally well.
E) Michelle runs much slower than Leah.