An isolated population of great purple hairstreaks, a species of butterfly, lives in a damp meadow. The larvae feed only on a species of mountain clover plant that lives in the meadow. The adult does not fly far from the clover plants as well. One rainy summer, a fungus causes most of the clover plants to die. As a result of the absence of clover, the hairstreak population in this location will MOST LIKELY A) increase and flourish. B) switch to a different type of food. C) decrease to a level near extinction. D) evolve immediately into a new species of butterfly.