Question: For a 4 - bit parallel adder, if the carry - in is connected to a logical HIGH, the result is: Group of answer choices

For a 4-bit parallel adder, if the carry-in is connected to a logical HIGH, the result is:
Group of answer choices
that carry-out will always be HIGH
the carry-out is ignored
the same as if the carry-in is tied LOW since the least significant carry-in is ignored
a one will be added to the final result

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