AP Psychology question.

White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells. Hope this helps

Bis correct you

What is the difference between psychoanalysis and psychophysics? c) psychoanalysis attempts to resolve conflict.