In a Perfectly Competitive Market,in Response to a Permanent Increase

In a perfectly competitive market,in response to a permanent increase in demand:

A) the short run equilibrium price will be higher than the eventual long run equilibrium price.
B) the short run equilibrium price will be lower than the eventual long run equilibrium price.
C) the short run equilibrium price will be the same as than the eventual long run equilibrium price.
D) we cannot know whether the short run equilibrium price will be above, below or equal to the eventual long run equilibrium price.