The correct option is "1 and 3 only" because statement 1 accurately describes blockchain as a decentralized public ledger accessible to all, but controlled by no single entity, ensuring transparency and reducing the risk of manipulation. Statement 3 is also correct, as blockchain's fundamental design allows developers to create applications on the network without requiring authorization, promoting innovation and inclusivity. However, statement 2 is incorrect because blockchain technology is not limited to cryptocurrency; it can store various types of data, such as contracts, records, and transactions, across multiple applications beyond financial use cases.