Answer:
A.rapid population growth that is largely unchecked
Explanation:
Species with r strategies are characterized by favoring a high population growth rate, The humans share this characteristic because the population increase has been exponential worldwide more than 7550 millions of habitants.This characteristic has caused a lack of control in the use of the natural resources necessary for our survival. We are exceeding our carrying capacity or maximum population size that the environment can support.
However, humans have characteristics of K species such as prolonged parental care.