You forgot to put the options, but i believe it is magma.
the answer is option a:the maximum number of individuals that a place could have
It continues to multiply untill the max. later it eats itself to make more space for it to multiply
I don't know what you mean by your question, but if you are making an appropriate title it will be good if you title it that is unique and would want to make your reader more interested with your story. Just trying to help :)
