With which one of the following would the author be most likely to agree? A. The long-term effects of controlled burning could just as easily have been caused by natural fires. B. Herbaceous undergrowth prevents many forests from reaching full maturity. C. European settlers had little impact on the composition of the ecosystems in North and South America. D. Certain species of plants may not have been as widespread in North American without controlled burning. E. Nicaraguan pine forests could have been created either by natural fires or by controlled burning.