pls answer this within 30 min

QUESTION 16 Out of the following four groups, who are the main beneficiaries from mandatory seat belt laws? O pedestrians O the government O owners of auto-repair shops road construction workers QUESTION 17 Suppose the government just passes a law that every cigarette packaging has to show a lung cancer patient's lung. This law will most likely result in: O an increase in the quantity of cigarettes demanded. a shift in the demand curve for cigarettes. a shift in the supply curve for cigarettes. an increase in the price of cigarettes QUESTION 18 If the Canada decides to trade with India, we know that India will benefit, but trade with a less developed country could not benefit the Canada. it will not benefit India because workers in the Canada are more productive. India and the Canada can both benefit. it will not benefit either country because their economies are too different