Answer:
According to Incentive theories there are two types of motivation - extrinsic and intrinsic. If you are driven by rewards in the form of outside objects like money, you would respond and utilize extrinsic motivation. If you are on the contrary, driven by internal rewards, like experience or joy from the process, you are likely to respond and utilize intrinsic motivation.
Explanation:
He must find his average heart rate zone
Both Kyla and Tia will be in their zone. Even if they dicrease their heart rates by 20 beats per minute from 175 beats per minute. 155 beats per minute still falls under kyla's target heart rate zone and Tia's target heart rate zone.