Comprehensive and Detailed Explanation:
The mostlikely causeof buffering issues when moving outdoors issignal degradation. Wireless signals weaken as they travel through obstacles such as walls, glass, and air, leading toweaker connections and reduced data rates.
Breakdown of Options:
* A. Network congestion- While congestion can slow down network speeds, itaffects all users, not just those moving outdoors.
* B. Wireless interference- Interference is possible but ismore likely caused by other wireless signals rather than outdoor movement.
* C. Signal degradation-Correct answer.Wireless signals weaken withdistance and obstaclessuch as walls, reducing performance.
* D. Client disassociation- Disassociation occurs when clientslose connection to the AP, but the question states that usersexperience buffering, indicating they are still connected but with a weak signal.