After replacing the single master control, the new master control software is inconsistent with the previous faulty master control software. Which alarm may be triggered by the network element damage?

After replacing the single master control, the new master control software is inconsistent with the previous faulty master control software. Which alarm may be triggered by the network element damage?
A . SWD_PKGVER_MM
B . SWDL_INPROCESS
C . SWDL_CHGMNG_NOMATCH
D . SWDL_PKG_NOBDSOFT

Answer: C