Which access level would allow a user to update billing subscriptions and access firm information?

The choice of standard all access is appropriate for this scenario because it provides users with a comprehensive level of control over the firm's information, which includes the ability to update billing subscriptions. This access level typically includes permissions that extend to managing various facets of operations, such as editing billing preferences, accessing company settings, and handling financial data.

Standard all access balances the need for sufficient privileges without granting unnecessary permissions that may come with higher access levels, such as full user access, which could include more administrative functions than just those related to billing and firm information. Therefore, standard all access is best suited for users who need to manage billing subscriptions while ensuring they have the necessary capabilities to perform tasks effectively without overstepping security boundaries.