A Physical Therapist Is Working with a 45 Year-Old Female

A physical therapist is working with a 45 year-old female (Stephanie) with multiple sclerosis in the home setting.The long-term goal (LTG) ,which has been identified by the team is: Stephanie will ambulate over unlevel surfaces,such as grass,for a distance of 250 ft within 4 weeks.Currently,she is able to ambulate over level surfaces,such as hardwood flooring,for 50 ft before fatigue sets in.The most efficient,measureable,and objective short-term goal (STG) would be:

A) Stephanie will ambulate over unlevel surfaces such as grass,for a distance of 50 ft within 2 weeks.
B) Stephanie will ambulate over unlevel surfaces such as gravel,for a distance of 50 ft within 2 weeks.
C) Stephanie will ambulate over level surfaces such as hardwood flooring,for a distance of 250 ft within 2 weeks.
D) Stephanie will demonstrate the ability to ascend and descend stairs.