Question: What is the primary purpose of the N32-f context ID in the 5G System security architecture?
Option 1: To authenticate the identity of the SEPPs.
Option 2: To encrypt application data transferred over N32-f.
Option 3: To establish a secure connection between SEPPs.
Option 4: To inform the receiving peer which security context to use for decryption of a received message.
Explanation: The N32-f context ID is used to refer to an N32-f context and informs the receiving peer which security context to use for decryption of a received message, ensuring that the correct key and parameters are applied during decryption and validation.