Answer:
A. an Allee effect.
Explanation:
Allee effect: In biology, the term "allee effect" is described as one of the phenomena which are distinguished as a specific correlation that exists between the mean of individuals fitness related to a particular species or population and the population density or size.
The main cause of the allee effect is the genetic mechanism.
In the question above, the given statement signifies an allee effect.
In respect to this question, there are no options given to choose from. So i am answering this question on the basis of my knowledge and i hope that it helps you. Some states have enacted a Balanced Budget Amendment to their state constitution, which require them to hold spending in line with revenues.
You must do 3 things:
1. Agree to be married
2. Live together as husband and wife
3. Tell others that you are married