Refer to the exhibit. The wireless user is moving from right to left towards AP2. What are three reasons that the wireless client would initiate roaming？（）
- A The minimum data retry count from AP1 is exceeded.
- B The maximum data retry count from AP1 is exceeded.
- C The client has missed too many beacons from AP1.
- D The client data rate from AP1 has been reduced.
- E The client has received too many beacons from AP2.
- F The client data rate from AP2 has been increased.