Multiple choice answers often follow a pattern, after all they are trying to get you to pick the wrong answer when you make a mistake along the way. This causes

Multiple choice answers often follow a pattern, after all they are trying to get you to pick the wrong answer when you make a mistake along the way. This causes the answers to group around the right answer. Test makers understand this and try and avoid telegraphing like that, but there is still some level of it going on.