What is the situation most likely to require process and technical controls to fulfill roles usually associated with system & organization controls? A user entity relying on a service organization with no blockchain component. O A user entity relying on a blockchain component from a large service organization which is clearly and easily identifiable. O A user entity relying on outsourced services to which existing standards apply. O A user entity relying on a blockchain component not tied to a single service organization. Which audit challenge associated with blockchains could not be addressed using an appropriate tool? O Overcoming normal limits of transaction verification O Finding a way to get important off-chain data onto the blockchain. Assessing the relevance and accuracy of audit data. O Aggregating blockchain reporting data by connecting multiple client exchange accounts. What is important for comprehensive process controls? O Knowledge of daily balances of wallets. O A balance of both physical and digital security. O Public key storage security. O A cell phone number attached to a wallet