The best question to guide a follow-up investigation about the role of pheromones in locating prey is How do pike determine that the fathead minnow pheromone is present in the water?
Option A is correct
Option A focuses specifically on the mechanism by which pike detect the fathead minnow pheromone and could involve investigating their sensory organs, the specific chemical properties of the pheromone, or the behavioral responses triggered by its presence. This information would further advance our understanding of how pheromones facilitate predator-prey interactions in aquatic ecosystems.
Then option C information imight be relevant to the overall predator-prey dynamics but isn't directly related to how pike sense and track prey using pheromones.