In Darwinian terms, the fittest individuals of a species are those that attract the most mates A grow to the largest size B are best adapted to the temperature extremes to which they are exposed C are best equipped to cope with the predators to which they are exposed D leave the greatest number of reproducing descendants

In Darwinian terms, the fittest individuals of a species are those that attracts the most mates and leave the greatest number of reproductive descendants.

Explanation:

Darwin's evolutionary theory have mentioned "Survival of the fittest'' that described the mechanism of natural selection.

The survival of fittest means the maximum rate of reproductive success.

Those individuals that leaves maximum copies of it's offspring which are actively successful in reproduction and transmit it's features to the next generation are fittest individuals.

Charles Darwin mentioned this on his book'' Origin of species'' in 1868

Survival of fittest is the alternative form of natural selection.

Survival of fittest ensures the chance to improve phenotypic characters.