These similar alternatives cannot both be correct and can therefore usually be omitted. All of the above This option does not require validation of each response to select it. All of the above. Answers disclosed by questions You can often find the answer to a question disclosed in the stem of another exam question. Absolutes - Be wary of absolutes.
Few things are unconditional.
Opposite Choices One answer in a pair of opposites is often the correct choice. It is difficult for an exam writer to invent two plausible false answers that are opposites. When to change an answer. Your first response is probably closest to being correct. Only change your first response if you have absolute, positive evidence that the first response was wrong.