Hi,

I have a question regarding the Assumption Negating Technique (ANT)

It basically says that if i take the opposite of an assumption as true and as a result the conclusion goes invalid, then this is the correct assumption.

Can this technique be used for all possible assumption questions or there are any exceptions to this rule?

Also, is it preferable to use this technique on the shot-listed 2/3 choices to save time or should I go ahead and negate all 5 answer choices to find the correct answer?

Thanks