Answer:
Muscular strength.
Explanation:
Katie will improve her muscular strength because most of the time she is training shot puts which involves pushing away as far as possible a heavy object. So, due to the weight and the potency she has to put during this trainings, their muscle will gain more strength.
On the other hand, flexibility, cardiovascular fitness and muscular endurance are less likely to improve the must, because she only jogs one day per wee, and stretches two days per week. So, basically, she train strength fives days a week, which get her a big improvement in this fitness component.
