which relative adverb would you use to explain that you forgot an address

why
what
when
where

The relative adverb "where" would be appropriate to use to explain that you forgot an address.

1. "Where" indicates the location or place of something, and when used as a relative adverb, it helps to give additional information about a noun (in this case, the address).
2. By using "where," you can specify the exact location you forgot, providing context and clarity to your explanation.
3. Example sentence: "I'm sorry, but I forgot the address where we were supposed to meet for dinner."