The type of training that requires the fewest number of repetitions is

The answer is : muscle strength and size training.

The most effective way to increase muscle strength and muscle size is by doing shorter but a higher intensity exercise. That's mean the number of repetition will be fewer, but the amount of weight resistance and intensity will be higher

answer; i believe that the correct answer is (b) is a factor associated with physical activity and heart disease;

transportation i would say maybe sorry it its not correct