Answer: Kallie should focus on the type; performing a different activity to achieve her goal (Option D)
Explanation: As Kallie is already giving a lot of time in practicing and her technique and energy output are outstanding, so her frequency, intensity and time in the FITT cycle are being completed.
The FITT cycle includes:
Frequency is the number of times she practices
Intensity denotes the level of difficulty
Time is the duration of the session
Type is the training activity that is being performed
Kallie should focus on the type of activity she is performing. She should change it and see if it would make her tennis serve better.
