How many bits are added to a device’s MAC address to convert it into an EUI-64 address?

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How many bits are added to a device’s MAC address to convert it into an EUI-64 address?

8 bits
16 bits
24 bits
32 bits

Explanation: To create a modified EUI-64 interface identifier from a 48-bit MAC address, the MAC address is split into two 24-bit halves, and the 16-bit hex value "FFFE" is inserted between them. This expands the 48-bit hardware address into a 64-bit identifier used for IPv6 unicast addresses.

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