The Following Represents a Portion of a Computer's Main Memory

The following represents a portion of a computer's main memory.
$\begin{array}{l}\text { Address}& \text { Contents }\\50 & 51 \\51 & 56 \\52 & 53 \\53 & 57 \\54 & 58 \\55 & 50 \\56 & 57 \\57 & 52 \\58 & 53\end{array}$
A.What would be stored at address 50 after executing the instruction "Copy the contents of the memory cell at address 54 to address 50"?

B.What would be stored at address 50 after executing the instruction "Copy the contents of the memory cell pointed to by the cell at address 54 to address 50"?