Read the Following Scenario, and Answer the Questions Below

Multiple Choice

Read the following scenario, and answer the questions below.

In North America, a toxic weed called leafy spurge was accidentally introduced and has grown and spread rapidly, covering millions of acres in north- central United States and south- central Canada. Leafy spurge is generally avoided by cattle and horses and may be toxic to them. Thus, rangeland where leafy spurge has spread has been damaged by the invasion of this plant.

-Flea beetles alone are unlikely to eliminate all of the leafy spurge in a region.Instead,the number of leafy spurge plants and the number of flea beetles in a particular community may stabilize.At such a point,the leafy spurge and flea beetle populations __________.

A) are still experiencing exponential growth
B) have experienced constant growth
C) have exhibited exponential growth followed by a crash
D) are experiencing ecological resistance