Question

excerpt from \the great gatsby\ by f. scott fitzgerald
that locality was always vaguely disquieting, even in the broad glare of afternoon, and now i turned my head as though i had been warned of something behind. over the ash - heaps the giant eyes of doctor t. j. eckleburg kept their vigil, but i perceived, after a moment, that other eyes were regarding us with peculiar intensity from less than twenty feet away. in one of the windows over the garage the curtains had been moved aside a little, and myrtle wilson was peering down at the car. so engrossed was she that she had no consciousness of being observed, and one emotion after another crept into her face like objects into a slowly developing picture. her expression was curiously familiar - it was an expression i had often seen on womens faces, but on myrtle wilsons face it seemed purposeless and inexplicable until i realized that her eyes, wide with jealous terror, were fixed not on tom, but on jordan baker, whom she took to be his wife.
which of the following passages from this excerpt of \the great gatsby\ helps to advance the theme that jealousy and obsession are dangerous things?
...her eyes, wide with jealous terror, were fixed not on tom, but on jordan baker,
in one of the windows over the garage the curtains had been moved aside a little,
so engrossed was she that she had no consciousness of being observed,

Explanation:

The passage "...her eyes, wide with jealous terror, were fixed not on Tom, but on Jordan Baker" clearly shows jealousy (as indicated by "jealous terror") which is a manifestation of the dangerous emotions (jealousy and obsession) theme. The other options like "In one of the windows over the garage the curtains had been moved aside a little" and "So engrossed was she that she had no consciousness of being observed" do not directly relate to jealousy and obsession.

Answer:

...her eyes, wide with jealous terror, were fixed not on Tom, but on Jordan Baker.