Answer:2. active (niche-picking) genotype-environment
Step-by-step explanation:
Active (Niche-Picking) Genotype-Environment Correlations is how children look for the environment that matches their capabilities and stimulate them. Niche-picking refers to how those environment that they choose suit or aligns well with their abilities. It is related to their genotype, meaning they have a heritable drive or traits which make them move towards that direction.
For example athletic Brad is inclined to choose a sport team because he is athletic whilst Stephen who loves math is inclined to choose a math club. Their characteristics drives them towards these unique choices.