Final answer:
Hypovolemic shock could result from hemorrhage of blood and dehydration.
Step-by-step explanation:
Hypovolemic shock is a type of circulatory shock caused by excessive loss of blood volume. One of the causes is hemorrhage of blood, which involves significant bleeding. Another cause is dehydration, where the body loses excessive fluids. Therefore, options a) hemorrhage of blood and b) dehydration can both result in hypovolemic shock.