They are called silent generation because they are the american generation born between the two world wars,who were too young to join the service when World War II started.
The first black president was elected and this was the way in which the presidential election of 2008 was unique in American history. The correct option among all the options that are given in the question is the third option or option "C". I hope the answer comes to your help.
Daimyo -- they were powerful landowners and feudal lords who ruled until their decline in the Meiji period.