The passage implies which of the following about native plant regeneration in forests after a fire? A. It is hampered by the changed nature of the fire-affected soils. B. It will generally occur without the human interventions of reseeding or replanting. C. The likelihood of its success increases when forest managers have on hand a good supply of native seed sources. D. Native plants will inevitably have to compete with nonnative plants. E. The earlier nature reestablishment occurs, the more complete it will be.