@Andrew Simonian I agree! The reasonable person in the manufacturer’s position would not have foreseen that the product would injure persons with the doctor’s allergy because this is a negligence action, and negligence depends on whether the defendant breached a duty of reasonable care. A manufacturer has a duty to warn or protect against reasonably foreseeable risks, but it is not required to guard against unknown or highly unusual allergic reactions that a reasonable manufacturer could not anticipate. Here, the doctor’s reaction resulted from a rare scalp condition that made him uniquely allergic to one of the ingredients. If a reasonable manufacturer would not have foreseen that the product could harm people with that rare allergy, then the manufacturer did not act unreasonably and therefore did not breach its duty of care. The other choices are weaker because they do not address the negligence issue of foreseeability. The manufacturer’s personal lack of awareness is not enough if a reasonable manufacturer should have known of the risk, and the fact that another company manufactured the product does not automatically relieve liability. Likewise, whether the doctor read the label does not matter much because the injury stemmed from the unforeseeable allergic reaction itself.