One of the most important considerations for speakers in using testimony as support material is .
a) the need to establish the source's credibility
b) the need to use well-known sources
c) the need to use vivid language
d) the need to define unfamiliar words or terms

abolish

do away with

unanimous

in complete agreement

secede

separate; break free

inauguration

starting a new position with a formal ceremony.

cooperationist

people who wanted the north to cooperate with the south

surrender

to give up

volunteer

perform a service for free

draft

involuntary service in military

retreat

withdraw; move away from enemy

advisor

expert who gives advice

explanation:

answer; the sons of liberty;

answer; revisionist;