From the options listed the strategy that would be least useful for helping students monitor comprehension of a text as they are reading is (A) breaking long sentences into short phrases
This option does not seem the most effective since it is a simplification or summary of sentences and the simplification does not always imply apprehension nor a correct hierarchization of the text.
The most important rule of survival Brian learned in Chapter 8 was that "feeling sorry for yourself didn't work..It wasn't just that it was wrong to do, or that it was considered incorrect. It was more than that - it didn't work".