Here, the sentence presents a prediction made by traffic safety officials. They predict that the chances that drivers will exceed the proposed speed limit is equal to the chances that they exceed the current speed limit. However, in order to make preceding meaning clear, the sentence should make use of the correct idiomatic phrase 'as...as', instead of the incorrect 'equally...as'. Due to this reasoning, options A and B are incorrect. Option C too has the same error. The use of ' ...likely that...' instead of simply '...likely to do..' in option D is also incorrect. This results in option E as being the correct answer.