What Is the Patient Goal of the Walking Exercise Program $\frac { 1 } { 2 }$

What is the patient goal of the walking exercise program designed for the rehabilitation of a post-MI patient?

A) Walk 2 miles in less than 60 minutes after 12 weeks.
B) $\frac { 1 } { 2 }$ Jog mile in less than 30 minutes after 12 weeks.
C) "Fast walk" 1 mile in less than 20 minutes after 12 weeks.
D) Walk 1 mile in 15 minutes without dyspnea after 12 weeks.