24. As it is used in the highlighted portion, the word otherness refers to the narrator's and Becky's:
Your Answer is
Correct Answer is J
Explanation
For word questions, you need to bring the four options into the original sentence, and infer the meaning of the word through the sentence meaning, logical relationship, and reference relationship.
L77: "My sister and I have always struggled with our incompatibility with other people, although I suspect I didn't realize it at the time." Otherness refers to the me mentioned in the previous paragraph He and his sister will be immersed in their own imagination and their own world, and it is difficult to integrate into real life. The loneliness in Item J best fits the meaning of the sentence.