Letting others define you
feeling bad when you say
going against personal boundaries to please others
The best answer would be the third option. Extended joints is a possible result of low levels of activity caused by being overweight. Being overweight, adds more pressure on your body parts which could lead to diseases that involve the joints. The most common is arthritis. More weight means more pressure on our joints especially on the lower part of the body.
The fact that the cerebrum is still developing during adolescence explains why teenagers act the way that they do is because their brain cannot yet fully comprehend some of the things that they do.