In this passage, the author uses the phrase "carrot on a string" to mean:
A. Explain that Ben can safely navigate toward the elevator in the darkness now that he can see it
A carrot on a string refers to an incentive that can draw a person to take an action. The carrot in this case might be the lit interiors that draw Ben in and make him opt for the elevator. Another way to think about it will be like the Carrot and Stick approach.
In the latter part of the sentence, he said that the opportunity was one that he could not help but embrace fully. This likely meant that he used that elevator. So, the carrot is like a reward for doing something and in this case, we can see that the lit elevator attracted Ben.
Learn more about the carrot and stick approach here:
https://brainly.com/question/16003638
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