Answer:
D) age of the participants
Step-by-step explanation:
- Irene seeks to investigate the impact of defendant existence on the verdict of a crime. She read the account equivalent to the offense to the participants excluding the presence of the defendant. A group of high school students get an attractive respondent explanation,
- Based on the information provided in the question I can say that the main reason for the confusion in the Irene experiment was the age of the participants
- Hence the correct answer is the age of the participants