A change occurring in a pregnant woman that is indicative of a potential disorder is a. increased urinary protein. b. 30% to 40% increase in cardiac output. c. increased metabolic rate. d. increased oxygen consumption.

a. increased urinary protein.

Explanation:

c is the correct answer!

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).