The answer seems to be all of the above but d) might be the right answer
This would be a true. They help people with problems and prescribe things like anti depressants for those who feel they have no purpose. For people who feel wronged and want revenge they talk about and ask questions about what they possibly will feel after they do it. It depends on the individual case quite frankly.
This is most definitely false. While sizing up a scene, you should always be applying your PPE.
A difference between the three are that arteries are larger than capillaries and veins. However, veins are larger than capillaries.