When is the use of a mobile phone while driving permitted?

A)Always.
B)Never, because it can cause distractions.
C)Only when a hands-free device is available.Correct
It is prohibited to use mobile phone devices and any other means or communication system while driving, even when stopped due to traffic conditions, except when the communication takes place without using the hands or wearing earphones or similar devices. The use of certified or approved wireless devices for use in the protective helmet of motorcycle and moped riders, for communication or navigation purposes, shall not be considered within the prohibition, provided they do not affect driving safety.