The correct answer is d) All of the above.
Ghost nets are abandoned, lost, or discarded fishing gear that continues to drift in the ocean. They can entangle and kill fish, marine mammals, sea turtles, and other marine life. Ghost nets can also damage coral reefs and other marine habitats.
Fish populations are particularly vulnerable to ghost nets. Fish can become entangled in the nets and drown. They can also be injured by the nets, which can make it difficult for them to swim and feed.
Coral reefs are also at risk from ghost nets. The nets can damage the reefs by entangling coral and other reef organisms. They can also smother the reefs by trapping sediment and algae.
Marine mammals, such as dolphins and whales, are also at risk from ghost nets. The nets can entangle and drown these animals. They can also be injured by the nets, which can make it difficult for them to swim and feed.
Ghost nets are a major threat to marine life. They can entangle and kill fish, marine mammals, sea turtles, and other marine life. They can also damage coral reefs and other marine habitats. It is important to reduce the number of ghost nets in the ocean. This can be done by properly disposing of fishing gear and by raising awareness about the dangers of ghost nets.