Which of the Following Best Explains the Fallacy of Equivocation

Which of the following best explains the fallacy of equivocation?

A) An argument commits the fallacy of equivocation when it appears to be cogent only as long as you don't realize that it's using the same word or phrase in two different ways.
B) An argument commits the fallacy of equivocation when it criticizes the person making an argument rather than the argument itself.
C) An argument commits the fallacy of equivocation when it falsely claims that the arguments or evidence on one side of a question are just as strong as the arguments or evidence on another side of the question.
D) An argument commits the fallacy of equivocation when it repeats the same idea in two or more premises using different words to say the same thing.