To better understand emotional development in childhood, a researcher develops the following plan for a study. She will recruit 5-8 year-old participants from a low-income preschool program. After obtaining consent from teachers, the researcher will have the participants watch a series of film clips meant to elicit a number of different emotions, including neutral scenes, such as a person making a sandwich; happy scenes, such as a person playing on a playground; and fearful scenes, such as a person losing a finger in a machine accident. Their emotional responses will be measured through behavioral observation of facial expression, as well as self-report measures of different emotions.

Thinking about this proposed study, A. are there any ethical issues relating to the concept of "respect for persons"? If so, explain what the problem is, and how it could be corrected.

B. are there any ethical issues relating to the concept of "beneficience"? If so, explain what the problem is, and how it could be corrected?

C. are there any ethical issues relating to the concept of "justice"? If so, explain what the problem is, and how it could be corrected.