The correct answer for this question would be A) Nnew = Nold.
Answer:
Steps are down below
Explanation
1. A small grain of pollen goes onto the stigma
2. Insects go into flowers and brush against the anther and is coated with pollen.
3. Pollen may fall onto the stigma of the next flower
4. Pollen falls onto the stigma of next flower
5. A small seed forms in the ovary of that plant
The first one is Earthquake, second one is nuclear fission, and the last one idk
