Ant Extermination

Have you ever noticed how ants find your food no matter what you do to keep them away? It seems that they have cell phones and call each other to say "Hey! over here." Each ant that comes into your home and knows exactly where to go. Why is that?
1) Ants have superior vision and can see through walls.
2) Ant have extraordinary sense of smell and can smell your food from far away.
3) Ants leave little messages (pheromones) telling the other ants where the food source can be found