To attack a straw man is to show that

A、an argument is made from straw.
B、any argument made from straw cannot be valid.
C、a particular argument is not sound, but in the course of doing so to misrepresent one's target argument.
D、a particular argument is not sound, but in the course of doing so, to misrepresent one's own proof.
E、a particular argument is both valid and sound, but to do so a way that avoids all use of straw