If this motherboard already has $8GB$ of RAM installed in the DIMMQ$\_$ChanA slot and the customer would like to upgrade to $16GB$ of dual$-$channel RAM, what memory modules are needed to be added?

What capacities and how many of each capacity?

$($Refer to Exercise $6\mathrm{.}2$ Configuring Memory on Paper Question $8,$ Figure $6\mathrm{.}23,$ and Table $6\mathrm{.}11)$

Two $16$GB modules

Two $8GB$ modules

Two $4$GB modules

One $8$ GB module