Answer:
B) Both curves will shift right.
Step-by-step explanation:
The supply curve will shift to the right because subsidies have a similar effect to a decrease in production costs. The supply curve will shift to the right increasing the quantity supplied at every price level.
The demand curve will shift to the right because a change in consumers' priorities increased total demand. This rightward shift will increase the quantity demanded at every price level.
In aggregate terms, the quantity demanded will definitely increase, while the effect on prices is uncertain because one shift (supply curve) will decrease equilibrium price, while the other shift (demand curve) will increase equilibrium price.