What type of response is expected to "Well, ask him _____ You don't want everybody knowing your business"?

The phrase "Well, ask him _____ You don't want everybody knowing your business" suggests a context where the speaker is advising someone to approach a conversation or query in a manner that is discreet or not overtly obvious. The term "subtly" fits this context perfectly, as it implies an approach that is gentle and not intrusive, allowing the individual to obtain information without drawing attention or causing discomfort.

Subtlety in communication often helps maintain a level of privacy or secrecy, which aligns with the sentiment expressed in the latter part of the statement about not wanting others to know personal matters. It indicates a cautious approach to discussing sensitive topics, which makes it the most appropriate choice for the blank in the sentence.