The language area that provides understanding of the spoken and written word is:

Persons who have not yet attained the legal age of consent under the applicable laws in the jurisdiction in which the research was approved.persons who are under 18 years of age.persons who have not yet attained the legal age of consent under the applicable laws in the jurisdiction in which the research will be conducted.persons who are under 21 years of age.

The two-factor theory of emotion was proposed by

Imagine you are driving down the highway and reading a sign that states save the planet don't litter which technique of policy enactment is being used