According to the attached image, the primary source was created Just after Austria-Hungary declared war on Servia (Serbia)
<h3>What is A primary Source?</h3>
In history, a primary source refers to the first account of an event which is narrated by people who were present when such an event occurred.
The primary source of an event is the most direct evidence of a time an event happened and is usually devoid of twists because such events are narrated as truthful as possible.
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The correct option would be "D. Farmer."
Under the Articles of Confederation, Congress had the power to do all of the following except "<span>a. regulate currency and commerce among the states," since the Articles intentionally made the central government very "weak" over the states. </span>