Assertion. In non-circuit switching techniques, the message may take different routes at different times.

Reason. The message switching and packet switching techniques are the same.

(c)

Assertion is true but Reason is false.

Explanation
In non-circuit switching techniques such as message switching and packet switching, messages may take different routes at different times. Message switching and packet switching are not the same techniques. In message switching, full message travel across different intermediate hops or switching offices, while packet switching involves dividing messages into packets and packets travel across hops.