Technician A says that modern PCMs have a more advanced learning capacity than previous PCMs did. Technician B says that disconnecting the battery will always erase all of the learned data from a...

Technician A says that modern PCMs have a more advanced learning capacity than previous PCMs did. Technician B says that disconnecting the battery will always erase all of the learned data from a modern PCM’s memory.

Who is correct?

A. Technician A only

B. Technician B only

C. Both technicians

D. Neither technician