A population of prickly pear cacti has 1,500 individuals with an intrinsic rate of increase (r) of 0.3. As the population gets close to its carrying capacity of 2,000 individuals, how will r change?
A) r will be near 0. B) r will be less than zero. C) r will be slightly less than 0.3. D) r will be slightly more than 0.3.