Jackson will assess his client's aerobic fitness using the YMCA 3-minute step test. Which statement best summarizes the correct protocols of this assessment?
a. After an adequate warm-up, perform 36 steps per minute on a 6-inch step; after completing the test, the individual sits while the fitness professional quickly palpates the radial pulse (within 5 seconds) and measures the number of heartbeats for 30 seconds.
b. After an adequate warm-up, perform 100 steps per minute on a 24-inch step; after completing the test, the individual sits while the fitness professional quickly palpates the radial pulse (within 5 seconds) and measures the number of heartbeats for 45 seconds.
c. After an adequate warm-up, perform 96 steps per minute on a 12-inch step; after completing the test, the individual sits while the fitness professional quickly palpates the radial pulse (within 5 seconds) and measures the number of heartbeats for 60 seconds.
d. After an adequate warm-up, perform 76 steps per minute on an 18-inch step; after completing the test, the individual sits while the fitness professional quickly palpates the radial pulse (within 5 seconds) and measures the number of heartbeats for 15 seconds.