What are the typical failures of the UCBIC, CPH, and UCH electronic modules? I- The UCBIC module has flexible boards and internal false contacts, ...

What are the typical failures of the UCBIC, CPH, and UCH electronic modules?

I- The UCBIC module has flexible boards and internal false contacts, and the turns may get stuck. The immobilizer passes through this module by infrared.
II- The CPH module is the first comfort module and is used in the Peugeot 306. It has typical failures of sulfation.
III- The UCH module has the immobilizer inside and may have the immobilizer repaired or turned off. The antenna of the immobilizer is amplified and called a socket. The micro is Motorola MS68. The through holes, which are the connections between the boards, should be checked.
IV- The BSI networks are practically the same as those of a 2010 or 2015. The communication becomes more complex from 2002 onwards with the appearance of multiplexed CAN networks.
a) Only I and II are correct.
b) Only II and III are correct.
c) Only III and IV are correct.
d) All statements are correct.