Final answer:
To carry out a behavior modification project without being a recognized professional, it is best to consult with a qualified professional and consider ethical considerations. The correct option is (c).
Step-by-step explanation:
When conducting a behavior modification project without being a recognized professional, it is important to consider ethical considerations.
The best course of action would be to consult with a qualified professional (option c) who can provide guidance and ensure you adhere to ethical standards.
Seeking guidance from online forums (option b) can also be helpful, but it is important to be cautious and verify the credibility of the information obtained. Proceeding without any restrictions (option a) and disregarding ethical considerations (option d) would not be appropriate.