Which of the following is an example of a scientific theory? . select one: . a. scientists use three mathematical laws to predict the movement of planets in the solar system.. b. scientists observe the effect of climate changes on plants and primary producers living in the ocean.. c. scientists use the relationship between the dna of various species to estimate how long ago they diverged evolutionarily from each other.. d. scientists agree that there is an amount of attraction between any two objects, called gravity, and can describe the attraction in mathematical terms.