Question

excerpt from \the adventure of the mysterious stranger\ by washington irving
many years since, when i was a young man, and had just left oxford, i was sent on the grand tour to finish my education. in the course of my tour i remained some time at venice. the romantic character of the place delighted me; i was very much amused by the air of adventure and intrigue that prevailed in this region of masks and gondolas; and i was exceedingly smitten by a pair of languishing black eyes, that played upon my heart from under an italian mantle. so i persuaded myself that i was lingering at venice to study men and manners. at least i persuaded my friends so, and that answered all my purpose. indeed, i was a little prone to be struck by peculiarities in character and conduct, and my imagination was so full of romantic associations with italy, that i was always on the lookout for adventure....
but i am running away from my subject with the recollection of youthful follies, said the baronet, checking himself; \let me come to the point....\
among my familiar resorts was a cassino under the arcades on one side of the grand square of st. mark. here i used frequently to lounge and take my ice on those warm summer nights when in italy every body lives abroad until morning. i was seated here one evening, when a group of italians took seat at a table on the opposite side of the saloon. their conversation was gay and animated, and carried on with italian vivacity and gesticulation.
i remarked among them one young man, however, who appeared to take no share, and find no enjoyment in the conversation, though he seemed to force himself to attend to it. his eye was full of expression and fire, but wild and
which best explains why irving sets \the adventure of the mysterious stranger\ in a land of \masks and gondolas\?
the setting is symbolic of the idea that innocence cannot be outgrown.
the setting is symbolic of the idea that ease and affluence are available to all.
the setting is symbolic of the idea that a life of quiet study is the ideal pursuit.
the setting is symbolic of the idea that appearances can be deceiving.

Explanation:

In the context of literature, settings often carry symbolic meanings. Venice, with its "masks and gondolas," is a place where appearances can be deceiving. Masks hide true identities, and the gondolas add to the mysterious and perhaps not - what - they - seem atmosphere. This is in line with the idea that in such a setting, things are not always as they appear on the surface.

Answer:

The setting is symbolic of the idea that appearances can be deceiving.