A Scientist Observes a Population of Grasshoppers in a Farm

A scientist observes a population of grasshoppers in a farm field several times over the summer. She notices that each time she visits, the population has doubled in size. The scientist's results indicate the grasshopper population is probably

A) in the lag phase.
B) in the exponential growth phase.
C) decelerating.
D) in the stable equilibrium phase.
E) at carrying capacity.