Answer:
I believe the answer is the third option 2/3.
So you are confident in yourself and how you look and so you can stay in shape before you get to old and enjoy your life to the fullest
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils. Hope this helps.
Usually these painting are made on birch trees because the bark has a much smoother surface compared to bark such as an oak tree.
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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 :)