using cones for spreading seeds a successful way to reproduce the ability to live in the desert thorns to keep away animals
I gave my students this multiple choice question: Some plants, like redwood trees, may live for thousands of years. Some plants, like the black-eyed Susan wildflower, may only live a few weeks. What would these plants most likely have in common in order to survive?

Only one answer is correct among these 4 choices:
- using cones for spreading seeds
- a successful way to reproduce
- the ability to live in the desert
- thorns to keep away animals

Could you tell me which one is correct?

a successful way to reproduce