Final Answer:
Among the benzodiazepines listed, Klonopin (clonazepam) is classified as a long-acting benzodiazepine. Ativan (lorazepam), Xanax (alprazolam), and Halcion (triazolam) are classified as short-acting or intermediate-acting benzodiazepines. so, the correct answer is klonopin.
Step-by-step explanation:
Klonopin (clonazepam) is a long-acting benzodiazepine. Benzodiazepines are a class of medications that are commonly used for the treatment of anxiety, seizures, and other conditions affecting the central nervous system.
Klonopin has a longer duration of action compared to some other benzodiazepines, meaning it remains in the body for a more extended period. This characteristic is often beneficial for conditions that require sustained relief from symptoms.
Therefore, the correct answer is Klonopin for a long-acting benzodiazepine.