Final answer:
The equivalent representation of the full IPv6 address is 128 bits.
Step-by-step explanation:
An equivalent representation of the full IPv6 address is 128 bits.
IPv6 (Internet Protocol version 6) is the most recent version of the Internet Protocol, designed to replace IPv4. It uses a 128-bit address space, which provides a significantly larger number of available addresses compared to the 32-bit address space used in IPv4.
Therefore, the correct answer is option c. 128 bits.