Is this Genotype, Mutation, Apaption or Natural Selection?

I can't answer your question, but I can tell you a little about some of the options. Adaptation is a change based on the environment(hopefully for the better). Mutation is usually on a cellular level, and is a more chaotic/non-beneficial unintended aggravation of the normal development process. Natural selection has to do with how a species chooses its partners in the mating process. I don't know about Genotype, if such a true term exists.