Which of the following examples is a bad research question? 

a) Is euthanasia legal? 

b) What effect do different legal approaches have on the number of people who drive after drinking in European countries? 

c) The impact of the carbohydrate-rich nutrition on allergy treatment among the primary schoolchildren 

d) How have modern adaptations of Shakespeare's Othello dealt with the theme of racism through casting, staging and allusion to contemporary events?