Answer:
communicating to persuade consumers to buy a product
Explanation:
The best answer from the choices given would be option A. The luminol test is capable of detecting bloodstains diluted up to 100,000 times. However, the correct value here is 300,000. The luminol test can still read up to that value. Luminol test has found some great application in crime scene investigations. It is able to find traces of blood even if someone has cleaned or removed stains.
B - biomedical therapy relies on drugs and medical procedures to improve psychological functioning. This is a type of therapy which involves giving different drug treatments to the patients with the hope of improving their psychological funcitoning.