Melvin is playing a game of chess. as part of an experiment, sandy, an intern at a hospital, wants to use a technique to identify which parts of melvin's brain are active when he is playing chess. which of the following techniques should sandy use?

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.