Inverted syntax refers to changing the order of words given in such a way that isn't expected. Inverted syntax are used by poet in order to make lines easier to rhyme.
Another way to write the line "Under thy roof no guest shall sit" is No guest shall sit under thy roof. Therefore, the correct option is A.
Presenting the manner of grief strengthens the impression made on the reader because it helps the reader understand more about how the author or character feels about the situation. <span />