I believe the answer is: B. Omit unnecessary task and vary activities
The main purpose of an ergonomics is to study worker's efficiency in the working environment. Efficiency could only be achieved if all time and efforts that workers made is spent accordingly, and focused solely to things that matters to their goals.
Answer:
the answer is C. all of the above
hope this helps : )
The superior mesenteric vein arises from the small instestine, asceding colon, and transverse colon. It carries blood through the hepatic portal vein into the liver's hepatic portal system, rather than returning this blood the the heart.
Active listening, good posture.