Say something along the lines of “ a skate park May also help people learn how to skate”
i would think A? before taking my answer maybe wait for a second opinion :)
The correct answer is D. Because an appositive phrase is usually separated from the rest of the sentence with the use of commas, just like in this case. And it refers to the noun, the subject. In this case, the appositive phrase is 'the youth council president', and it refers to, or renames 'Stephanie'.
To keep the pet's coat shiny and smooth you need to keep the pet cleaned
hope it helps <3