Find answers to your most challenging questions with the help of IDNLearn.com's experts. Ask your questions and get detailed, reliable answers from our community of knowledgeable experts.

Which of the following is a reason why fentanyl has been the main cause of drug overdose deaths since 2016?
- Fentanyl is less potent than heroin, and, thus, more can be taken.
- Fentanyl can only be administered intravenously.
- There is no treatment for fentanyl overdoses.
- Fentanyl is more widely available.