MCQOPTIONS
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| 1. |
Bitcoin is a digital currency officially recognized by Japan. Which of the following statements is true about Bitcoin? |
| A. | No one controls it and it is not regulated by any central bank or government. |
| B. | It is produced by using software that solves mathematical problems. |
| C. | It uses cryptography to prevent double spending. |
| D. | All of these. |
| Answer» E. | |