A physical therapist is treating a patient with a history of multiple sclerosis. The patient exhibits an ataxic gait pattern, hypotonia, and difficulty with maintaining her balance when changing directions. Which of the following intervention strategies would be the LEAST effective with this patient?

a) PNF rhythmic stabilization for the trunk
b) tone-inhibiting techniques to the lower extremities
c) rhythmic auditory stimulation
d) weight cuffs on her ankles