Answer:
C. The author's meaning is not clear because he or she has used too many pronouns with unclear antecedents.
Step-by-step explanation:
The excerpt was well written till it got to the fourth sentence.
The author's meaning is not clear and there is no clear conclusion to the paragraph because the author used too many pronouns from the fourth sentence.
"Because the level of public assistance has not kept pace with other costs, this means they spend a greater proportion of their income on basic necessities that are not accounted for in the poverty equation" and "Further, it fails to account for regional differences in costs or receipt of other benefits such as Medicaid and Food Stamps" are unclear sentences with pronouns that have no antecedents.