how many deployments (excluding the copy between environments) must take place for the changes to be live in production…?

Your customer’s site consists of four business units using four different interfaces. To avoid any
configuration changes affecting other business units they have created four test environments for all
system changes to be deployed and tested for each business unit before moving and changes into
production. Following the standard deployment method, how many deployments (excluding the
copy between environments) must take place for the changes to be live in production, if they are
customer portal changes for each of the four interfaces on each of the four environments?

A.
28

B.
30

C.
32

D.
34

E.
36

F.
38

G.
40