Question

Cultural identities are​ _____________, dynamic and multifaceted components of an​ individual's self-concept.

Answer 1

The answer is central and this is said by Myron Lustig. Lusting points our that those three exist in a changing social concept. As an outcome, an individual's identity changes in life. Other researches refer to those concept as guiding principles of their daily life.

Answer 2

I believe the answer is Central.
The word central in this context means that we used our own cultural identity as a basis on how we see our role and determine which group we feel belonged in society. It became a part of our self-concept in structuring our personal values and belief.