According to the Arrhenius definition, which of the following compounds is a base? 
Definitions:
U.S. Definition of Poverty
A set of income thresholds that vary by family size and composition, used to determine who is classified as living in poverty according to the federal government.
Losing Autonomy
The process or feeling of losing one's independence, control, or freedom to make one's own decisions.
Health Issues
General term for any condition that affects the body or mind's normal functioning, potentially requiring medical attention.
Financial Situation
The current status of an individual's or entity's finances, including income, expenses, debts, and assets.
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