Which is given as an explanation for how the Paleozoic supercontinent ice cap melted?
O A. Plant life turned oxygen into carbon dioxide, increasing the
temperature.
O B. Plants dying off increased the greenhouse effect.
O C. Carbon dioxide levels decreased, raising the temperature.
O D. Volcanic eruptions decreased, raising the temperature.

i need an image of the diagram

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).