encountering strong competition having a long life span producing identical offspring having a diverse gene pool
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which factor will most likely increase the survival chances of an organism living in an environment that is undergoing rapid changes?
Possibilities:
- encountering strong competition
- having a long life span
- producing identical offspring
- having a diverse gene pool

having a diverse gene pool