Answer:
e. explain the deception to the subjects afterwards
Explanation:
According to my research on different experimental methods, I can say that based on the information provided within the question ethically, research involving deception must always explain the deception to the subjects afterwards. After the data is collected they need to explain and obtain their informed consent to use the information, otherwise it is unethical and possibly illegal.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.