C. Rock salt ... 1) was sea salt many years ago. 2) can only be of white colour. 3) and other salts taste the same. D. Which of the following is NOT true today? 1) Salt is cheap and easy to buy in shops. 2) Traditional salted foods are popular. 3) People can use salt instead of money. E. If you say that somebody is the salt of the earth, it means that ... 1) you like them. 2) you don't believe them. 3) they are unpleasant.