Answer:
The correct answer is option C.
Explanation:
A rightward shift in the demand curve means that at the same price levels, the consumers are demanding more of the commodity. A rightward shift in the demand curve causes it to intersect with the supply curve at a higher point.
The equilibrium point shifts upward. This causes both equilibrium quantity and price level to increase.
A leftward shift, on the other hand, causes the equilibrium price and quantity to decrease.