The answer is D “Plaque can build up and prevent oxygen from reaching the brain”.
The answer is A. In General, people accomplish less when practicing good human relations
That statement is simply wrong. Human is a Social animal. We are not made to live in this world alone. That's why we have to practice good human relation.
People tend to accomplish MORE if we practice good human relations ( building connection, have a good customer service, Have a better social circle, etc)
