Which of the following is NOT a legal form of bait in the South Zone?

In the context of fishing regulations, particularly in the South Zone of Maine, there are specific rules governing what constitutes legal bait. While artificial lures, worms, and artificial flies are widely accepted forms of bait, live baitfish may be restricted due to concerns about ecological impacts, disease transmission, and the preservation of fish populations. The use of live baitfish can introduce non-native species or parasites into local aquatic environments, posing a threat to indigenous wildlife and ecosystems. Therefore, live baitfish is not considered a legal form of bait in this area, making it the correct choice in the context of the question. Understanding the regulations regarding bait usage is crucial for responsible and sustainable fishing practices.