This is the 8343rd most frequent Japanese word.
後者
"後者" means "the latter."
Here, 後者 refers to the 'last mentioned' option when listing choices for travel destinations, emphasizing her selection.
旅行先として日本とフランスの選択肢があり、彼女は後者を選びました。
For the travel options of Japan and France, she chose the latter.
In this case, 後者 indicates the 'second' option or idea mentioned in a comparison, highlighting its realism.
この二つの提案では後者がより現実的な選択と言えます。
Among these two proposals, the latter can be said to be the more realistic choice.
In this sentence, 後者 is used to denote the 'latter' in comparison to the 'former' (前者) in a pair of items or concepts.