Which of the following situations will trigger cell reselection (if the C2 algorithm has not been activated, C2=C1)? (Multiple choices)

Which of the following situations will trigger cell reselection (if the C2 algorithm has not been activated, C2=C1)? (Multiple choices)
A . MS calculates that the C2 value of a certain cell exceeds the C2 of the current cell for 5 consecutive seconds
B. The current serving cell is banned
C. MS monitoring downlink failure
D. MS random access, when the access attempt is still unsuccessful after the maximum retransmission
E. Wireless link timeout
F. The MS calculates that the C2 value of a certain cell (not in the same location area) exceeds the sum of the current cell C2 and the cell reselection hysteresis value for 5 consecutive seconds (if the cell reselection occurred in the previous 15 seconds, the cell reselection will not occur again)

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Answer: ABCDF