What is the term used to describe when the population growth is at a level that can't sustain any more growth because there are not enough resources to sustain life on earth?

can you tell me where are the ansawer choices

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.