School uniforms should not be required because schools can't tell students how to dress. How do you know that this example is illogical? It appeals to the audience's innate desire to follow the crowd or fit in. It simply restates the statement using different words. It attacks the opposition instead of the argument. It uses strong language to arouse emotions, instead of appealing to logic.

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.