challenge: What was the primary reason for the fish kills in the river Sutherland's Hole near potato farms in Montague, PEI?
  
  A. Excessive growth of algae due to pesticide use
  B. Runoff of herbicides, insecticides, and fungicides after heavy rains
  C. Contamination from heavy metal runoff
  D. Loss of habitat for the fish species
  Answer: 