Over 60 million acres of land in the United States has weeds that are resistant to the herbicide glyphosate (commonly known as Roundup). Glyphosate became widely available in the 1970s, and glyphosate-resistant crops were introduced so that farmers could spray their fields without harming their crops. After retiring as a professor of plant biology, Dr. Smith has decided to become a farmer and is concerned about the extra cost of Roundup-ready seeds as so many weeds have evolved resistance to glyphosate. Dr. Smith decided to test the common agricultural weeds present on her 500 hectare farm to see if they were resistant to glyphosate. Here are the results. Weed Species # of Hectares where Present (% Overall) 280 (56%) # of Hectares with Resistant Weeds (% of Hectares Present) Pigweed Horseweed 220 (78.6%) 70 (14%) 65 (92.9%) Waterhemp 95 (19%) 80 (84.2%) Johnson grass 55 (11%) 5 (9.0%) Would you advise Dr. Smith to make the investment in glyphosate-resistant soy beans so that she can use the herbicide on her fields? Choose one: A. No, she should not spend the money because a high percentage of the weeds are resistant to glyphosate. B. Yes, she should spend the extra money as a low percentage of the weeds are still susceptible to glyphosate. C. Yes, she should spend the extra money as a high percentage of the weeds are not resistant to glyphosate. D. No, she should not spend the money because a low percentage of the weeds are resistant to glyphosate.