If the output of a logic gate is ‘1’ when all its inputs are at logic ‘0’, the gate is either

If the output of a logic gate is ‘1’ when all its inputs are at lo

1.	If the output of a logic gate is ‘1’ when all its inputs are at logic ‘0’, the gate is either
A.	a NAND or a NOR
B.	an AND or an EX–NOR
C.	an OR or a NAND
D.	an EX–OR or an EX–NOR
Answer» B. an AND or an EX–NOR