[sensanaty]

At least from what I remember in A-level physics, a lot of the multi-choice answers usually had 2 sets of answers, both of which were ambiguous and could be the correct answer. A few questions even had answers where they were all the same answer, just with the digits either transposed or the decimal point being different. Stuff like

A) 1.2e10 B) 1.2e9 C) 2.1e10 D) 2.1e11