With reference to 'Bitcoins', sometimes seen in the news, which of the following statements is/are correct?1. Bitcoins are tracked by the Central Banks of the countries.2. Anyone with a Bitcoin address can send and receive Bitcoins from anyone else with Bitcoin address.3. Online payments can be sent without either side knowing the identity of the other.Select the correct answer using the code given below.

• A. 1 and 2 only
• B. 2 and 3 only
• C. 3 only
• D. 1, 2 and 3