Answer: b. Inclusive Fitness
Step-by-step explanation:
Inclusive fitness is the number of equivalents of offspring that an organism rears, rescues, or otherwise supports through it's actions.
Inclusive fitness is a theory which suggests that an organism's genetic success depends on cooperation with other people in a population. For future generations, a gene would be more prevalent if all individuals possessing the gene succeed for reproducing it, rather than only one person having the gene.
Hence the correct option is b. Inclusive Fitness