Internal satisfaction in sports is best described as
a. keeping a positive attitude
b. reminding yourself that you are good at what you do
c. attempting to improve
d. all of the above

The correct option is D.
Internal satisfaction can be described as an inner calmness which one experience about a particular issue, which is not influenced by external factors.What leads to internal satisfaction is the awareness that all is well. In sport, internal satisfaction encompass maintain a positive attitude, improving one self and having confidence in one's ability. 

The answer would be a