Choose the right meaning of the underlined part of the following sentences. This is the value associated with 'getting down to brass tacks' and 'sticking to facts' ----values taken for granted in American business and education, and per haps more generally by American men.
A.
(to start to consider) the basic facts or practical details of something and what people say is exactly what they mean.
B.
to continue doing or using sth and not want to change it
C.
to continue doing sth to the end, even when it is difficult or boring
D.
in communication people should be polite and say no more or less than needed