Nathan has plans of opening a call center. He will require a network connection that will have a bare minimum of $3$ Gbps upstream and at least $8$ Gbps downstream throughput. Analyze which of the following will provide a solution to Nathan.

a$.$

Using a DOCSIS $3\mathrm{.}0$ for maximum throughput

b$.$

Using a DOCSIS $2.$x $(2\mathrm{.}0$ and $2\mathrm{.}01$ IPv$6)$ for maximum throughput

c$.$

Using a DOCSIS $3\mathrm{.}1$ for maximum throughput

d$.$

Using a DOCSIS $4\mathrm{.}0$ for maximum throughp