Which of the following conditions would lead to a small population size?
a. a low birth to death ratio
b. a high birth to death ratio
c. immigration
d. large number of resources

Option a. low birth to death ratio
a= more people die than are born.
b=more people are born than die which is not possible according to question.
c=lots of people from other places come which cant be the solution.
d=the area has lots of resources to support a population which does not fulfil the question statement
 

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