please help me with question 3 and 4

Keactivate 2. There is an increase in the number of adverts highlighting the dangers of sweeteners (as opposed to sugar). Which of the following is likely to occur sugar, as a result of this? a) An increase in both price and equilibrium quantity traded 3. If the price and the quantity of curtains exchanged falls, it is likely that a) demand for curtains has increased. b) demand for curtains has decreased. H c) supply of curtains has decreased.d) supply of curtains has increased. e) supply and demand for curtains have both increased. 4. Which one of the following will not cause an increase in the demand for c a) A decrease in the price of cabbage