In which of the following ways can fish be processed and preserved?

Fish can be processed and preserved in a variety of ways, but one of the most common ways is through salting and smoking. Salting helps to remove moisture from the fish and creates an environment that is inhospitable to bacteria. Smoking the fish then adds flavor and helps to preserve it further by reducing the amount of water and oxygen available to bacteria. This process of salting and smoking can extend the shelf life of fish for several months. Another method of preserving fish is through fermentation, which is often used to make fish sauces and pastes. However, smoking and pasteurization are also sometimes used in fish preservation, but not as commonly as salting and smoking.