Computer Science for IGCSE & O level - Boolean Logic (Section 3 - No. 42)

Which of the following are true about the use of NAND gates in building circuits?

Any logic circuit can be built using only NAND gates.

NAND gates can be used to create NOT gates.

NAND gates can be used to create OR gates.

NAND gates are not commonly used.

NAND gates are versatile and can implement any other logic gate.