The hardware address of a computer network device consists of 48 bits. Which of the following is a valid address in hexadecimal numbers?

A 48-bit MAC address needs exactly twelve hexadecimal digits, and 00E0071944A0 has twelve valid hex characters.

The value 0A23B5 has only six hex digits, representing 24 bits, far too short.

The value 1E07FG124372 contains the letter G, which is not a valid hexadecimal digit.

The value 398A7E9412110408 has sixteen digits, representing 64 bits, too long for a MAC address.

Hexadecimal uses only digits 0 to 9 and letters A to F.

A MAC address is written as six pairs of hex digits identifying a network interface.