Why is it critical that counter variables be properly initialized?

A$.$ It does not matter if the counter is initialized or not, it will always start at $0$

B$.$ proper initialization sets the counter up to "count" the appropriate number of times for a loop to execute.

C$.$ Not knowing the exact value of the counter is not important, the compilerr will update the counter to a value it knows will work

D$.$ It is critical to initialize the counter so all variables can be updated by the appropriate counter$-$calculation