Gets the list of applicability questions for all potential tariffs. Tariffs sometimes have eligibility conditions to sign up for them ("applicabilities"). For example, signing up for an EV tariff often requires an electric car registered to the account holder at the account's address. Answers to the returned applicability questions can be passed to the recommendations endpoint to get the most relevant tariffs.
The set of potential tariffs can be specified either by an Arc Utility Account ID, or by considering all tariffs in a given zip code served by a specific Genability Load Serving Entity (LSE)
Either utility_account_id or both the zip_code/lse_id must be specified