A physical therapist is working with an 80-year-old patient following a fall. The patient sustained no major injuries, but the family is questioning her future fall risk. Which of the following outcome measure results would be most indicative that the patient is a fall risk?

a) Activities specific balance confidence scale at 55%
b) The four square step test in 13 seconds
c) The timed up and go test in 12 seconds
d) The short falls efficacy scale international at 10