Which one of the following statements is correct?

Freud used the term . . . . . . . . to refer to unconscious processes that defend a person against anxiety.

A. Libido

B. Defense mechanisms

C. Psychosexual stages

D. None of the above

. . . . . . . . cells are crucial for fighting infection, have a short life-time and must be continuously replaced.

A. Blood

B. White blood

C. Red blood

D. None of the above

Which one of the following opttions present the correct ascending order sequence of stressful life events that impair an individual's health?

A. Death of spouse, marital separation, personal injury, getting fired at work

B. Personal injury, marital separation, death of spouse, getting fired at work

C. Getting fired at work, personal injury, marital separation, death of spouse

D. Marital separation, personal injury, getting fired at work, death of spouse

Which one of the following statements is correct?

A. Anxiety and hostility can increase general arousal and facilitate the release of catecholamines

B. Catecholamines stands for a class of neuro transmitters that play an important role in the sympathetic nervous system

C. The release of the catecholamine epinephrine has the effect of boosting a person's overall readiness to act-a rise in blood pressure is a symptom of this

D. All of the above