C) Inadequate carbohydrates consumption
All of the above is the answer for this question
This answer is quite tricky because it could be A (gaining control of your life) or D (performing aphysical activity).
Performing some physical activity is a very helpful way of dealing with frustrations that are major or minor. Physical activity in general has many beneficial effects (also including higher self-esteem for example).
However, if the mentioned frustration in your life is major, I would say one needs to rethink certain aspects of one's life, take a step back and see what and where should be done to improve this frustration.
For this reason I would say it's more likely that A is the answer. Hope this will help you :)