Correct Answer: Salt, sodium nitrite, spices, and vinegar

Solution : The correct option is Salt, sodium nitrite, spices and vinegar .

Salt is used as a food preservative. It has been used to preserve various foods, notably meats, and fish.

Sodium nitrite is a preservative primarily used to preserve, and colour processed meats such as bacon and hot dogs.

Spices have minor preservation qualities and are frequently used to improve flavour.

Vinegar is an excellent food preservative when used in pickling. Vinegar contains acetic acid, which aids fruits, and vegetables by providing an acidic environment that prevents the growth of spoilage microbes.