I think this a tough question, and I hesitated between a) and b), but I choose the second answer - Physical Therapist.
Physical Therapists are licensed providers of care, and their educational education has evolved to the point where physical therapists graduate with a doctorate in physcal therapy. Personal trainers have a degree or a certificate. This is not the same.
It is because digestion happens in the smaller intestine
Lung diffusion is your ability to pass oxygen into the blood from the air sacs of the lungs, and pass carbon dioxide (CO2) back into the lungs from the blood.
Blind spots in large animals are normally directly down, behind, or up. So i think its b.
