Which of the following states has the highest population density?

Which one of the following population attributes contributes to an increase in population density?

The reproductive capacity of a population that is not limited by environmental factors is called .......

Consider the birth rate and death rate per year in a given population.
Total population after $5$ years $\rightarrow 100$
Number of individuals dying per year $\rightarrow 10$
Number of individuals born per year $\rightarrow 20$

The percentage ratio of natality over mortality is called

Find the odd one out with respect to population attributes.