The correct answer is option 4, unripe fruits. To understand why, we need to know a little bit about the poppy plant and its chemistry. The poppy plant, scientifically known as Papaver somniferum, produces a milky white sap called opium. Opium is used to produce opioids, such as morphine, codeine, and heroin.

Option 1, dried root, is not correct because the root of the poppy plant does not contain opium. The sap is mainly concentrated in other parts of the plant.

Option 2, dried leaves, is also not correct for the same reason. While the leaves of the poppy plant may contain some alkaloids, they do not produce opium.

Option 3, dried seeds, is not correct either. The seeds of the poppy plant are not responsible for opium production.

The correct answer, as mentioned earlier, is option 4. The unripe fruits of the poppy plant, also known as capsules or pods, contain the highest concentration of opium. These fruits are harvested before they fully mature and dry out. By scoring the surface of the fruit, the milky sap is released and collected.

In conclusion, the part of the poppy plant that yields op