Javier wants to improve his flexibility and increase his personal discipline. which community resource should he select?
tennis lessons
soccer league
swim club
karate class

I believe the best would be the Karate Class. 

Javier wants to improve his flexibility and increase his personal discipline  the community resource he  should  select should be

D.karate class

Explanation:

Karate is over simply a fun and active sport; it'll teach your kid the mental, physical and spiritual blessings to succeed in class, at home, and in life this course of study introduces basic skills coaching to the first elementary cohort, that is presently establishing a basic foundation of physical, intellectual, social and emotional skills.