What is the most possible profession of the author? ( )

(单选题)What do we learn about Danish taxation on fat-rich foods? ( (单选题)Why have many countries started to consider taxing sugar? ( (单选题)What did Adam Smith say about sugar, alcohol and tobacco? ( (单选题)According to the author, the primary solution to environment (单选题)According to the author, why fish resources are diminishing? (单选题)The huge increase in world population and production ( ). (单选题)According to the author, most students ( ). (单选题)Which of the following is true according to the last paragra (单选题)Which of the following would Peter Costa most probably agree (单选题)The phrase "swift reversal" most probably refers to ( ).