In a certain code, $FORGIVE$ is written as $DPPHGWC$. How would $REQUEST$ be written in that code?

The correct option is C $PFOVCTR.$

As the first, third, fifth and seventh letters are each moved two steps backward , while the second, fourth and sixth letters are each moved one step forward to obtain the corresponding letters of the code.
Hence, the required code of $REQUEST$ is $PFOVCTR.$