Answer: B) Working.
Explanation: an analogy is a comparison between one thing and another, usually with the purpose of explanation or clarification, this comparison is based on one similarity or difference between specific features of two things. In the first pair of words "kitchen" and "cooking" the relationship is that the kitchen is a place for cooking, in the given options, the one that shares the same relationship with the word "office" is option B: working, because the office is a place for working.