<span>The correct answer is A. The period is used only at the end of a sentence and is considered to give finality to a given sentence, providing a stopping place. The comma, apostrophe and quotation marks each provide a different functionality, and are used internally in a sentence. The comma is used to separate words. The apostrophe is used to indicate possessiveness. Quotation marks indicate a direct quote from a person.</span>
"Sitting on the park bench" is the dangling modifier. Who is sitting on a park bench? Is it the sun? It does not make sense because you don't have a subject.
I remember that it always troubled me to account for those unvarying boots in the window, for he made only what was ordered, reaching nothing down, and it seemed so inconceivable that what he made could ever have failed to fit.
