Answer:
a. salting: application of Sait (?) to the food to be preserved.
b. curing: this method is done by soaking or injecting meat.
c. refrigeration: a quick and convenient to Preserve food such as meat poultry and fish which are stored in refrigerator until they are to be consumed.
d. pickling: adding pickling solution vinegar, salt, sugar, to vegetables like grated green papaya, ginger, carrots, onion and bell pepper
e. this is the easiest and the most common method