A boy, playing on the road, was about to be run over by a taxicab. The driver, however, applied the breaks and brought the cab to a screeching halt and the boy was slightly injured. The mother of the boy who happened to watch the same from her house at a distance of 100 meters from the sight, suffered a nervous shock. The driver is:

A. Not liable, because he does not owe a duty of care to the mother

B. Liable for the nervous shock since it is the direct consequence of his act

C. Liable, because he owed a duty of care to the mother

D. Not liable, because the damage is not reasonably foreseeable

Answer: Option C