The correct answer is answer A ("Autonomy").
The Self-Determination theory is based on the values of autonomy, competence and relatedness as the three most important aspects of life that need to be fulfilled in order for an individual to feel complete.
Autonomy refers to the feeling that we are free to choose what we want to do and fully able to do it by ourselves.
Competence gives us the crucial gratification of doing something we're good at.
Relatedness comforts us when we're valued by the people we interact and work with.
Hope this helps!