From which part of plant, cevadine is extracted?

Answer: Option D

From the seed part of the plant, cevadine is extracted.
The product is produced by grinding the seeds of the plant and subsequent concentration. The seeds contain between 2 and 4% alkaloids.
Cevadine is a botanical pesticide obtained from the seeds of the South American lily Schoenocaulon officinale. It acts as a neurotoxin by binding to and preventing the inactivation of voltage-gated sodium ion channels in the heart, nerve, and skeletal muscle cell membranes.