In the phrase "survival of the fittest," the term "fittest" refers to: A. The best-adapted organisms
B. The biggest organisms
C. The smartest organisms
D. The fastest organisms

A

Explanation:

From what I know this could be wrong, but in the four stages of natural selection, the first step is overproduction, the second step is adaptation, and the third step is competition or survival of the fittest. This means that only the organisms with the best adaptations for their surroundings will survive. COULD BE WRONG SORRY IF IT IS

d. changes in climate and historical records

hope this

answer///triple meter;