Well, you could not ge to war. You could make better schools. Etc.
The authors point of view
When his only son, Androgeus, was killed in a battle against Athens, he was so eaten up with grief and hatred that he demanded a terrible tribute every nine years, fourteen young Athenians were to be sent to Crete to be fed to the Minotaur.
“Ask not what your country can do for you – ask what you can do for
your country,” challenged every American to contribute in some way to
the public good.
Answer:
It's B because it's the best way for him to have a happy ending.