To determine what is being contrasted in the passage, you'd need to reference specific content from the paragraphs. However, based on the options provided, the contrast is likely related to the views or practices of farmers and scientists, the types of crops, or the methods of pest control.
If the passage discusses the differing opinions or methodologies between farmers and scientists, then "the views of farmers and scientists" would be the correct answer.
If it discusses the differences between traditional pest control methods versus those in genetically modified crops, then "traditional herbicides and insecticides" might be the answer.
Similarly, if it talks about the differences between organic and nonorganic practices, then "organic and nonorganic environmental practices" would be the appropriate choice.
Without the specific content of the passage, it's challenging to provide a definitive answer. Please examine the themes and main ideas in the text to identify what is being contrasted.