The title "Foster, You're Dead" does not directly correspond to a widely recognized historical event, so pinpointing the exact influence without more context about the author or the text itself is difficult. However, authors can often be influenced by the socio-political climate of their times.
If the author was writing in a context reflecting paranoia or fear of conflict, B) The Cold War/Nuclear Arms Race might be the most relevant historical event. The Cold War created a backdrop of tension and existential fear that could inspire themes of mortality and conflict in literature.
For a more precise answer, additional context about the author and the themes of the work would be necessary.