What is the event block that all of your code changes belongs to if you do not explicitly code any event blocks in an executable program? Please choose the correct answer.

What is the event block that all of your code changes belongs to if you do not explicitly code any event blocks in an executable program? Please choose the correct answer.
A . START-OF-SELECTION
B . LOAD-OF-PROGRAM
C . AT SELECTION-SCREEN OUTPUT
D . INITIALIZATION

Answer: A