Which of the following is a correct resonance structure for compound A? 
Definitions:
Incidence of Poverty
The proportion or rate of a population living below the poverty line, indicating the extent of poverty in a given area.
Married-couple Families
Families consisting of a husband and wife as the main household members, possibly with children.
Poverty Rate
The percentage of the population living below the poverty line defined by national or international standards.
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