Answer:
The student should probably say, "Instead of taking the escalator, use the stairs and even try climbing two at a time."
Explanation:
The first one doesn't explain how to get more exercise, it only explains how to not get injured before doing any physical activity. And the other two are basically irrelevant to the topic.
If the bolded word is 'superfluous' then it would be the words after that would help to determine the definition.
The language was powerful durning the wartime speech because it they could of use secret plans . For example if they wanted to throw a bomb somewhere they could of told them in their own language so they have a better shot in beating the other team .
answer should be B
just took the test and that was right