If a fish hatchery was initially stocked with 1,000 rainbow trout and has a carrying capacity of 12,000 trout, and the population grows at a rate of 20% per year, how many rainbow trout are in the hatchery after 1 year? (Round your answer to a whole number.)
A) 1,200
B) 2,000
C) 2,400
D) 2,800