D. People who disagree with his ideas about nature.
because, it is easier to use plants or things of that type other than using human trials which can be lethal if done wrong.
Could you post the passage?
A lyric poem expresses personal emotions spoken in the first person. They have musical rhythm and their themes are usually romantic feelings or other solid emotions in a way evocative of a song. Also, sometimes it is contrasted with a narrative poem and verse drama telling the events like a story. With this explained, we can choose option 2 as the correct answer In lyric poetry, the poets focus on their emotions and feelings.