Choice B is the correct option, in the current MLA format, you finish the quote then add your citation. You do not need a comma to separate the author and page number. Author first, then page number<span />
The correct use of comparative is found in the following sentence:
<span>D. George has a bigger appetite than Harry.
</span>
Below, I will correct the other sentences:
A. This is the worst picture I've ever seen.
B. Alicia is a better swimmer than Marilynn.
<span>C. Of the three girls, Janet is the best speaker.</span>
You can do around a cone or just try punting into the goal. You can also practice with a partner and see if you can score in them vise versa