Problem: Illegal drug trafficking has been increased in Bhutan that threatens the health and happiness of the Bhutanese society. Choose the most appropriate measures that you think will be able to reduce the drug usage: a. Strengthen the existing screening system at the airport. b. Change the existing Laws of the country for drug usage. c. Include lessons in the school curriculum on effect of drugs on health and well being of the society. d. Introduce a system of providing regular classes on Affect of Drugs and care of children for the parents by the schools.