The Janzen-Connell Hypothesis Says That the Seeds of Rare Species

The Janzen-Connell hypothesis says that the seeds of rare species have a survival advantage over common species:

A) because the seed predators of a given species gather in high density around mature trees of that species.
B) because soil pathogens of a given species are more common in the soil around mature trees of that species.
C) if seed dispersal mechanisms are effective in transporting at least some seeds far enough from their parent plant to escape any pathogens and seed predators associated with that particular parent.
D) because the probability of any given seed surviving to adulthood is independent of where it germinates.