CC Railroad is negligent in failing to give warning of the approach of its train to a crossing and thereby endangers Larry, a blind man who is about to cross. Mildred, a bystander, in a reasonable effort to save Larry, rushes onto the track to push Larry out of danger. Although Mildred acts as carefully as possible, she is struck and injured by the train. 

a. Can Mildred recover from Larry?

b. Can Mildred recover from CC Railroad?