Answer: The correct answer is "A. The equilibrium price should rise as the supply curve shifts to the left and the demand curve shifts to the right ".
Explanation: In this case the equilibrium price should rise as the supply curve shifts to the left and the demand curve shifts to the right .
Word of mouth and the recommendations of experts that make the product more popular, causes demand to shift to the right (increasing), and the fact that producing more units of this product to increase production can increase Costs cause the offer to shift to the left (decrease). As a consequence the equilibrium price increases.