What Is the Appropriate Developmental Sequence for Running of the Following

Multiple Choice

What is the appropriate developmental sequence for running of the following descriptions of leg action?
I. The swing thigh moves forward with acceleration causing 90 degrees of maximal flexion in the knee.
II. The run is flat-footed, with minimal flight.
III. Foot contact is with the heel or the ball of the foot.

A) I, II, III
B) II, I, III
C) III, II, I
D) III, I, II
E) II, III, I