In a certain code, "TOPPER" is written as 'POTREP'. In that code, which word will be written as 'RUBREG'?

Given: In a certain code, "TOPPER" is written as 'POTREP'.

Logic: Position of letters are interchanged.

For, TOPPER - POTREP

Similarly,

RUBREG - ?

So, RUBREG is written as BURGER.

Thus, correct option is (a).