Answer:
The answer is option D "before; after"
Step-by-step explanation:
childhood behavior problems foresee ensuing instructive accomplishment; in any case, little examination has analyzed the etiology of these connections using a longitudinal twin plan. Also, it is obscure whether hereditary and ecological developments give steady forecast to instructive accomplishment from adolescence.
Notwithstanding, we likewise discover proof that hereditary and non-shared climate advancements following up on conduct problems have suggestions for ensuing instructive accomplishment, reliable with ongoing work contending that adolescence speaks to a delicate period for socio-effective improvement.