Consider the following statements :1. An 8-input MUX can be used to implement any 4 variable functions.2. A 3-line to 8-line DEMUX can be used to implement any 4 variable functions.3. A 64-input MUX can be built using nine 8-input MUXs.4. A 6-line to 64-line DEMUX can be built using nine 3-line to 8-line DEMUXs.Which of the above statements are correct ?

Consider the following statements :1. An 8-input MUX can be used to im

1.	Consider the following statements :1. An 8-input MUX can be used to implement any 4 variable functions.2. A 3-line to 8-line DEMUX can be used to implement any 4 variable functions.3. A 64-input MUX can be built using nine 8-input MUXs.4. A 6-line to 64-line DEMUX can be built using nine 3-line to 8-line DEMUXs.Which of the above statements are correct ?
A.	1, 2, 3 and 4
B.	1, 2 and 4 only
C.	3 and 4 only
D.	1, 2 and 3 only
Answer» D. 1, 2 and 3 only