Two different species of deer are housed in two separate areas of a wildlife park. The initial population of species A was 300, and the population is increasing by 15% every year. The initial population of species B was 400, and the population is increasing by 7% every year. After __ years, the populations of the two species will be approximately equal, with __ deer of each species.
A) 9, 600
B) 12, 520
C) 15, 650
D) 18, 720