In the circuit shown in the figure,four identical resistors labeled A to D are connected to a battery as shown.S1 and S2 are switches.Which of the following actions would result in the GREATEST amount of current through resistor A? 
Definitions:
Farmers' Alliance
A broad mass movement in the rural United States during the late 19th century, which sought to improve the economic conditions for farmers through the creation of cooperatives and political advocacy.
Federal Troops
Military forces deployed by the federal government of a nation, often used to denote soldiers sent to enforce laws within the country, including during periods of civil unrest.
Using Force
The application of physical power or violence to achieve an objective, often associated with military action or law enforcement tactics.
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