Arizona agency disclosure must be provided:

Option A is incorrect because Arizona law requires agency disclosure to be provided at the earliest practical opportunity, not at closing. Waiting until closing would violate the state's disclosure requirements and could be considered concealment of material information. The purpose of early disclosure is to ensure clients understand agency relationships before significant decisions are made in the transaction.

Agency disclosure in Arizona is mandatory, not optional. It must be provided regardless of whether the client requests it, as it's a fundamental consumer protection requirement.

Waiting until after the contract is signed is too late. Agency relationships and obligations begin during preliminary discussions, so disclosure must occur earlier in the process.