Maturation of thought processes and the tools used to obtain knowledge, become aware of the world, and solve problems are involved in what type of development?

The answer should be a.

He was an adventurer and writer who established a colony near roanoke island, in present day north coralina.

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.