The answer is Chemotherapy
A persons biological because its the only one that makes sense according to the study of genetics. EX: X chromosome are always in females eggs, while the x & y chromosome is in the male.
Stress hormones affect your respiratory and cardiovascular systems. During the stress response, you breathe faster in an effort to distribute oxygen and blood quickly to your body core.
D. Cancer is the answer to your question as those types of therapy cannot treat the previous diseases/disorders
