Answer:
The correct answer would be option D, Scheme.
Explanation:
Scheme is the term used for an organized pattern of functioning that adapts and changes with mental development.
In simple words, when a large scale systematic plan is made to attain or achieve some particular or specific objective, it is called as a scheme. Putting an idea into effect is called as a scheme.
As scheme is a large scale plan or arrangement, so it requires continuous involvement to adapt with the changes that may occur during the execution of the scheme.
