The correct answer is C. integrated.
When your actions and thoughts are aligned, you are more likely to be happy. This is because you are living in a way that is true to yourself and your values. You are also more likely to be successful in your endeavors, as you are able to focus your energy and attention on what is important to you.
Option A, diverget, is incorrect because it means to move in different directions. This would suggest that your actions and thoughts are not aligned, which would make it more difficult to be happy.
Option B, unravelled, is incorrect because it means to become loose or disordered. This would suggest that your actions and thoughts are not well-organized, which would also make it more difficult to be happy.
Option D, invincible, is incorrect because it means to be incapable of being defeated. This is not necessarily related to happiness. A person could be invincible and still be unhappy, or they could be happy without being invincible.
In conclusion, the correct answer is C. integrated. When your actions and thoughts are aligned, you are more likely to be happy.