After the UPS5000-E system is installed, which of the following items need to be checked? (Multiple choice)

After the UPS5000-E system is installed, which of the following items need to be checked? (Multiple choice)
A . if US and battery system mechanical installation is firm and stable
B . if the cable layout considers other system wiring in the future.
C . if the ground connection is reliable
D . The positive and negative terminals of the battery are wired correctly.

Answer: ABCD