Answer: b.Its results can improve lives, but sometimes consequences are negative.
Step-by-step explanation:
Biotechnology is a field of science which deals with use of technology and biological sciences to solve problems related to diseases, disorders, and improving the quality of organisms.
In this a practice of genetic engineering is petfomed in which the genome of organisms are manipulated so as to introduce a new gene or to delete a gene which is causing disease.
Sometimes the results of these scientific processes are good thus helps in increasing the yield of the organism (plant or animal), introduces new traits, helps in erradication of diseases or disorders and others. But sometimes the results are harmful for the organism like instead of recovering from disease the organism becomes susceptible to many diseases. Also with the introduction of new traits some beneficial traits are suppressed.