What should be done to unused inputs on TTL gates?

1.	What should be done to unused inputs on TTL gates?
A.	they should be left disconnected so as not to produce a load on any of the other circuits and to minimize power loading on the voltage source.
B.	all unused gates should be connected together and tied to v through a 1 k resistor.
C.	all unused inputs should be connected to an unused output; this will ensure compatible loading on both the unused inputs and unused outputs.
D.	unused and and nand inputs should be tied to vcc through a 1 k resistor; unused or and nor inputs should be grounded.
Answer» E.

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What should be done to unused inputs on TTL gates?

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