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Consider the following scenario.

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Consider the following scenario. A startup is building a chat app for smart phones where the messages sent between users are anonymous and get destroyed within 24 hours of being sent.

Which architecture would best solve the product need?

A.

Ethereum for token management and chat messages; Mobile apps use JSON-RPC to communicate directly with Smart Contracts

B.

Private blockchain to persist chat messages; Custom built token system with private blockchain smart contract

C.

Token management for shareholders in a public blockchain; Mobile apps and data management built on existing multitier systems without use of blockchain

D.

Hybrid blockchain for token management with Proof of Stake; private blockchain to persist the chat messages

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