A Typical Bar Magnet Has an "N" Stamped on Its

A typical bar magnet has an "N" stamped on its north pole end and an "S"
Stamped on its south pole end. With the right tools, you might be able to change this bar magnet in one or more of the following ways: (1) remove its magnetic poles altogether, (2) reverse its magnetic poles so that it has a north pole at the end stamped "S"
And a south pole at the end stamped "N", (3) convert its north pole into a south pole so that it has south poles at both ends and no north poles. Which of those three options is physically possible?

A) Only (1) and (2)
B) None of them is possible.
C) Only (2) and (3)
D) All three are possible.