The cause of zero growth of population is

$A$ bacterial population grows at a constant rate per minute. If the logarithm of the population size is plotted against time, what is the shape of the graph?

If a population growing exponentially doubles in size in $3$ years,what is the intrinsic rate of increase $(r)$ of the population (in $\%$)? $(e = 2.71828)$

The formula for exponential population growth is

According to which theory will the human population outrun the food supply?

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: The logistic growth model of populations is considered more realistic than the exponential growth model.
Reason $R$: Resources are finite.
In the light of the above statements, choose the most appropriate answer from the options given below: