I would say both but the best would be the blood sugar
The psychologist is using a Token Economy because for doing something, you get a reward in exchange.
The answer is B I believe
Answer:
A. Epicardium
B. Myocardium
C. Endocardium
D. Interventricular septum
E. Superior vena cava
F. Inferior vena cava
G. Right atrium
H. Tricuspid valve
I. Trabeculae carneae
J. Pulmonary semilunar valve
K. Pulmonary trunk
L. Left pulmonary veins
M. Left atrium
N. Mitral (bicuspid) valve
O. Left ventricle
P. Aortic semilunar valve
Explanation: