The Population of Aphids on a Rose Plant Increases at a Rate

Multiple Choice

The population of aphids on a rose plant increases at a rate proportional to the number present.In 5 days the population grew from 700 to 1100.Which of the following formulas give for the population of aphids at time t in days, where t = 0 is the day when there were 700 aphids?

A) $P=700 e^{5 t}$
B) $P=700 e^{\left(\frac{1}{5} \ln \frac{11}{7}\right) t}$
C) $P=700 e^{2000 t}$
D) $P=700 e^{\left(\frac{1}{5} \ln 400\right) t}$