Cameron Is the oversees His company's northeast Region While Kevin oversees The southeast region this is an example A. Customer departmentalization
B. Functional departmentalization
C. Process departmentalization
D. Geographic departmentalization

can you add the article

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)