Diuretics, which are also called " water pills are used to treat a variety of medical conditions. one of the side effects of diuretics is frequent urination as water is removed from blood and excreted in urine. which of the following best explains how blood pressure would be affected by diuretics?

digestion

it excretes wastes

protistas excret ethanol used in the manufacture of vinegar

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).