a. It measures calories burned.
b. It usually doubles as an MP3 player and keeps people motivated.
c. They count steps during a workout.
d. They measure the number of lifts done per exercise.
Answer:- The right answer is option C. They count steps during a workout.
Pedometers help people reach their fitness goals by counting the number of steps they take during physical activity, which can encourage them to increase their physical activity levels. By tracking their steps, people can set goals and monitor their progress towards achieving them. This can help motivate them to increase their physical activity levels over time, which can improve their overall fitness and health. Pedometers do not measure calories burned or the number of lifts done per exercise, and while some may include an MP3 player feature, this is not a primary function related to fitness goals.