Aids, a disease of the immune system, is directly affected by stress. stress may then promote the deadly progression of the disease. these two statements are an example of factors influencing processes.

These two statements are an example of psychological factors influencing biological processes

Explanation:

Attitudes or behavior, as well as psychological factors such as stress and depression, can negatively affect some illness (such as diabetes mellitus, heart disease, AIDS or migraines) or symptom (such as pain). Psychological factors may aggravate the disease or symptoms, sometimes resulting in hospitalization or a visit to the emergency room. For example, severe stress may promote the deadly progression of AIDS and temporarily weaken the heart, or chronic work-related stress may increase the risk of high blood pressure. There may be an increased risk of suffering, death or disability due to the disease.

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;