Which of the following can be categorized as a narcotic?

Answer: B — Codeine

Codeine is categorized as a narcotic because it is an opioid that is used to relieve pain. It works by binding to specific receptors in the brain and spinal cord to reduce the perception of pain, which is characteristic of narcotic analgesics. Additionally, codeine can produce feelings of euphoria, which can lead to its potential for misuse and addiction. In contrast, ibuprofen, acetaminophen, and aspirin are classified as non-narcotic analgesics. They work through different mechanisms to alleviate pain and inflammation but do not have the narcotic properties or the same potential for dependence that codeine has.