The Fallacy of Appeal to Ignorance Occurs When Someone

The fallacy of appeal to ignorance occurs when someone:

A) holds that a proposition is false simply because very few people think that it is true
B) is caught in a lie, but claims to be unaware that it is a lie
C) tries to slip a falsehood into an argument, counting on the listener to be ignorant of the truth
D) holds that a proposition must be true precisely because it seems so likely to be false
E) holds that a proposition must be true since it hasn't been proven false