Miranda,a student in Brad's business law class,asks a hypothetical question that is,in fact,based upon a current problem that her brother,Stan,is having.Brad gives an incorrect answer,and Stan suffers a loss when he acts according to the answer Miranda provided him.Brad has:

A) no duty of due care to Stan,but has to Miranda.
B) no duty of due care to either Miranda or Stan.
C) a duty of due care to both Stan and Miranda.
D) a duty of due care to Stan,but not to Miranda.

Brad, as a teacher, has a duty of due care to his students, including Miranda, in the context of providing accurate and responsible instruction. However, Brad does not have a direct relationship with Stan, Miranda's brother, who acted on the information second-hand. The duty of care generally requires a direct relationship between the parties for liability to arise from negligence. Since Stan was not Brad's student and Brad was unaware that his advice would be used by Stan, Brad does not have a duty of care towards Stan.