Students attending schools with mandatory uniform policies experience less pressure than do students who must choose their wardrobes. This is because school uniforms allow students and their parents to save money
and time. The financial investment in uniforms at the beginning of the school year is far more economical than
the purchase of an entire wardrobe of designer clothes and trendy styles. Students who do not have to
deliberate what to wear each morning are able to invest their time in more productive ways, such as studying for
tests or finishing homework. Uniforms may stifle students' self-expression, but there are many other ways for
them to reveal their individuality at school.
Which fact best supports the author's position?

A (the first answer)

Explanation:

The main idea of this paragraph is that the students attending schools with mandatory uniform policies experience less pressure than do students who

must choose their wardrobes. So, the author is FOR mandatory uniform policies

With this information, we want evidence that supports the main idea.

Option B is just a statement that explains how if parents want to exempt their children from uniforms, they need to talk to the administration.

Option C is just a statistic that states the number of students that had uniforms.

And Option D is, again, just a statement that doesn't support the main idea.

So the correct answer is A.

the correct answer would be:  

a. adverb phrase

answer: c

explanation: because it has a dangling   construction error. hope this !