|Question text:|| Virtual or digital currencies exist online and are different from U.S. dollars ($), the euro (€), or other official foreign currencies. They are sometimes called cryptocurrencies.
Have you heard of Bitcoin (BTC)?
|Answer type:||Radio buttons|
|Answer options:||1 (YES) Yes
2 (NO) No
|Empty allowed:||One-time warning|
|Error allowed:||Not allowed|