What is the name of Irans new currency

What is the name of Irans new currency
A: Roman
B: Sian
C: Bron
D: Toman

The official currency of Iran had been the Rial but in practice people commonly used the Toman which equaled ten Rials. In 2020 Iran formally replaced the Rial with the Toman to simplify financial transactions and to address inflation. The adoption of the Toman aimed at stabilizing the economy and making daily transactions easier for citizens. Historically the Toman was used during Safavid times which adds cultural significance to this change. The shift reflects both practical financial needs and a return to a historic monetary unit.