Which of the following statements related to the nervous system is correct?
a. the nervous system, comprised of two major components, i. e., the peripheral nervous system (pns) and the central nervous system (cns), has three main functions: sensory input, integration of data, and motor output.
b. the pns is subdivided into sensory (afferent) and motor (efferent) divisions.
c. afferent sensory neurons conduct signals from the pns to the cns. efferent motor neurons conduct signals from the cns to the pns.
d. all of the above.

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).

it is because according to the process , scientific inquiry is a process with many steps because each step occurs to the scientist and if you just skip a step there would be no steps to scientific inquiry.