B. based on assumptions about the appropriate sources of family income ^
** Appropriate =should, sources = depend on
As a solution, they challenge the govern-
[35] (40) ment’s assumption that a family’s income should depend primarily on
wages and urge the government to
provide generous wage supplements
C 的urge是和challenge 并列的, 不属于assumption的范畴了, under revision是无关信息 |