Kids do the opposite of what adults tell them therefore the approach now is counter productive
A parenthetical statement must be set off using commas because it always (C) can be removed from the sentence without hurting the meaning.
Because of this, the parenthetical element is often also referred to as 'added information'.
The answer is, “overly exited” because you are describing something and you see adjective in adjectival and adjective is a word that describes a noun and “children” in this sentence is the noun