Normally people who have been suffering from factitious disorder would exhibit self-administered injuries. These people do not exhibit pseudoneurological injuries with a significant medical history.
For example, Munchausen by proxy is a factitious disorder. Individuals suffering from this disorder seek attention from the patients by creating illness or prolonging the illness.
It is a type of elder or child abuse. Individual’s suffering from this disorder contaminates the specimens, uses drugs to induce the physical symptoms. They enjoy the attention that an ill person gets.
Thus, the options (a), (c) and (d) are incorrect.
Normally people who have been suffering from factitious disorder would exhibit self-administered injuries.
Therefore, the correct option is – b. self-administered injuries.