QUESTION $9$

Assuming that ALUOut holds a byte address, which definition of the data memory is consistent with the following definition of the MemtoReg multiplexer?

assignWD$=(MemtoReg)?$ DMemory

$reg[31$:$0]$ DMemory $[0$:$1023]$;

$reg[0$:$31]$ DMemory $[0$:$1023]$;

$reg[0$:$15]$ DMemory $[0$:$1023]$;

$reg[15$:$0]$ DMemory $[0$:$1023]$;

reg$[7$:$0]$ DMemory $[0$:$1023]$;