There are three cells A, B, and C. If A does not have a handover relationship with B, but has a handover relationship with C, the coverage of these three cells does not cross the area, and a user moves in the direction of A-B-C, then which of the following statement is correct?

There are three cells A, B, and C. If A does not have a handover relationship with B, but has a handover relationship with C, the coverage of these three cells does not cross the area, and a user moves in the direction of A-B-C, then which of the following statement is correct?
A . In the idle mode of the mobile phone, first reselect to B, then reselect to C
B. In call mode, there will be no call drop
C. No matter in idle mode or call mode, network drop will occur
D. If the mobile phone is turned off in cell A and turned on in cell C, the cell phone will first search for the LA where cell C is located

Answer: C