The customer had a 802.11b/g WLAN site survey and installation two years ago with the final service performing as expected. Since that time, the customer has experienced modest customer growth while maintaining employee headcount. New wireless applications are being evaluated along with a possible temporary headcount increase, but the current WLAN performance has noticeable performance degradation. What is the most likely cause of the WLAN performance problems?
A. They have added a second microwave to the break room.
B. A new coffee shop with a wireless hotspot has opened across the street.
C. The customer has expanded their shipping capacity by 50%.
D. Employees are now using their smart phones and tablets in the office.
