I don't disagree with you, that, if we have to make a "Best Guess", we need to bring in our day to day context - but using the the one word, "only" - not only e

I don't disagree with you, that, if we have to make a "Best Guess", we need to bring in our day to day context - but using the the one word, "only" - not only eliminates the guessing, it also helps to reinforce logical thinking. Re: Electron - I was trying to use it as an example of a poorly written exam. This particular question was on a Grade 10 final exam, and I thought it was obviously, "proton." The "correct" (for some definition of correct?) was "electron." I was using it as an example to demonstrated that "test creators" - are people, just like you and me, who make mistakes. Also using it to show how the student who is always looking for the "correct" answer (as compared to the correct answer) starts to lose their ability to parse and logically communicate.