Question: What is a prerequisite for the presence of the EFARPK (Administrator Root Public Key) file on a USIM?
Option 1: The SIM issuer must have previously loaded an EFORPK (End-Entity Public Key) record.
Option 2: Service number 41 must be marked as 'available'.
Option 3: The terminal must support Third Party certificate management without USIM involvement.
Option 4: An Administrator Root Private Key must already be stored on the USIM.
Explanation: If service number 41 is marked as 'available', the EFARPK (Administrator Root Public Key) file shall be present on the USIM, indicating a dependency between this service's availability and the EFARPK file's mandatory presence for controlling Third Party certificates via an Administrator root public key.