What are the options? Because i believe the first to be bought.
Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight
Although Columbus was technically born in Italy, he sailed to the New World officially under Spanish control, which is why the Spanish had a "head start" on New World colonization.
A. the assembly line mass production