Final answer:
The cause of preeclampsia that does not fit is 'normal birth weight'. Preeclampsia is associated with both low and high birth weight, and autoimmune disorders can increase its risk.
Step-by-step explanation:
The question concerns the causes of preeclampsia, which is a pregnancy complication characterized by high blood pressure and signs of damage to another organ system, most often the liver and kidneys.
The correct answer to the question "All of the following are possible causes of preeclampsia except ________ birth weight" is c) Normal. Preeclampsia is not caused by having a normal birth weight, but it has been associated with both low and high birth weight. Also, it is known that autoimmune disorders may increase the risk of developing this condition.