Using Your Knowledge of the Principles of Motor Learning, If

Using your knowledge of the principles of motor learning, if Jacinta (6;8 years) engaged in constant practice to address dentalization of /s/, this could mean that she is practicing /s/ in:

A) word-initial, within word, and word-final positions in words without a break.
B) isolation throughout the day.
C) practicing /s/ in word-initial position in the word sun with the same rate, pitch and intensity.
D) practicing /s/ in conversational speech throughout the day with different conversational partners in different speaking contexts.