Answer: C. Emigration
Explanation:
Young animals approaching maturity might do emigration, to find mates or to establish new territories. Emigration can be define as the migration or departure of individuals from their native land to the new land. The organisms usually find a suitable location where resources such as food, water and mates are available for copulation and reproducing offsprings. The increase in the population of the emigrant organisms help it to maintain their own territories against the competing members of the same population.
