Question

new york city is often called \the city that never sleeps.\ long after sunset, lights from the city shine bright.
new york city is often called \the city that never sleeps,\ blank long after sunset, lights from the city shine bright.
options: if, while, because, so

Explanation:

We need to find the correct conjunction to connect the two parts of the sentence. The first part says New York is called "the city that never sleeps", and the second part (lights shine bright long after sunset) explains why it has that name. "Because" is used to introduce a reason, so it fits here. "If" is for conditions, "while" for time/contrast, and "so" for results (but here we need a reason, not a result of the first part).

Answer:

because (the option with text "because")