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:
Present Value
The current worth of a future sum of money or stream of cash flows, given a specified rate of return; it quantifies the concept of time value of money.
Stamping Machine
A mechanical device used for imprinting designs, patterns, or information on various substrates through the application of pressure.
Discount Rate
The interest rate charged to commercial banks and other financial institutions for loans received from the Federal Reserve's discount window.
Loanable Funds
The market for borrowing and lending of capital, where savers supply funds to borrowers, usually at an interest rate.
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